This article covers 4.5 angle Grinders powered by electricity with cable (Cord). So if you are looking for cordless Grinders or pneumatic powered Grinders this article may not help you.
The angle grinder is one of the most popular household tools. Many people have a grinder or want to purchase a grinder, but those with overspending tendencies may not be aware that there are other types of angle grinders. There are four major types of angle grinders: corded, cordless, tabletop, and handheld. The corded model is often referred to as a tabletop grinder or a kitchen grinder.
The future of home appliances is here and its name is the angle grinder. Thanks to the popularity of the electric rotary tool, there are thousands of people out there who are looking for a decent grinder to spend their money on. Angle grinders range from sub-$40 to more than $200, but there are several factors to consider when shopping for an angle grinder.
11 Best 4.5 Angle Grinders Corded 2021
- Black & Decker 4-Inch/100Mm 820-Watt Angle Grinder
- BOSCH 4-1/2 Inch Angle Grinder GWS8-45
- DEWALT Angle Grinder Tool, Paddle Switch, 4-1/2-Inch, 11-Amp (DWE402)
- Makita 9557PBX1 4-1/2″ Paddle Switch Cut-Off/Angle Grinder
- Metabo HPT Angle Grinder | 4-1/2-Inch
- WESCO 6 Amp POWER Angle Grinder Tool
- PORTER-CABLE Angle Grinder Tool
- G LAXIA 6A(750W) 4-1/2″ Angle Grinder
- CRAFTSMAN Small Angle Grinder Tool
- Tacklife 8.5amp angle grinder
- BLACK+DECKER Angle Grinder Tool
What is an Angle Grinder?
An angle grinder or disc grinder is a small handheld power tool used for performing a wide variety of operations on metals (usually but not always)
A wide variety of Discs are used based upon usage. Usually, abrasive discs are used for metals, Steel based alloy discs (Diamond Cutting Discs) are used for concrete, soft wool or fabric-based discs are used for polishing, Power Brush (Cup Brush) is used for cleaning of metals, etc.
Let us talk about different types of discs available for Metalworks.
Metal Cutting discs are usually made of abrasive material with adhesive reinforced with fiber webbing. There are many different types and thicknesses of discs available. a 1mm cutting disc (115x1x22.23) is widely used in a 4.5” grinder for cutting All grades of Steel, Iron, Aluminum, Copper, etc.
For Grinding 3mm and 5 mm discs are widely used. Similarly, Flap discs are widely used for fine grinding, Finishing, and polishing of steel it has many different Grits available same as sandpaper. we can choose any Grit Flap Disc as per finishing required.
To use Grinders Proper PPE must be worn. Let us say you want to cut a piece of metal (plate or beam). You have to wear Gloves, Apron, face Shield, or google (a face shield is better). So make sure to have proper PPE before starting the grinding process Especially eye protection.
Why is it called Angle Grinder?
This tool is called an angle grinder because the drive motor is at 90° with the gear head on which the disc is mounted
Things to consider before buying an angle Grinder.
RPM stands for revolution per minute. Greater RPM means clean and fast cut.
More power means we can cut through thick metals with ease and without losing RPM.
Safety is a big concern in angle grinders. So always look for angle grinders that have superiors safety features. in such high-speed revolutions, even a small mistake can cause a major injury. Make sure the dead man switch is available. The handle is there and the disc is covered with proper Guard.
An angle grinder is a tool that can cut through almost any material. This is especially useful, whether you are cutting clay or steel. When you are making a piece of jewelry, or a specific piece of metal, having some sort of angle grinder is a good idea. It’s important to know how to use the tool properly, however, so that you don’t make any errors or damage your piece of jewelry while cutting it.
There are two different types of angle grinders on the market. The first type of angle grinder is popularized by Stanley, which is also known as a “lathe”. The lathe is a type of tool that sits on top of an angle grinder and allows you to use the grinding wheel instead of the grinder itself. The second type of angle grinder is more modern, popularized by Black & Decker, which is also known as a “router”. Routers are similar to grinder devices, but they have a built-in adjustment mechanism.
There are many different types of angles grinders on the market. We here at Chubbies have selected the top 11 angle grinders for 2021. These are the best angle grinders you can find on the market today.
Best 4.5 Angle Grinders Corded 2021
1. Black & Decker 4-Inch/100Mm 820-Watt Angle Grinder
Brand: Black & Decker Model: G720R RPM: 12,000 Disc Size: 4 inches Weight: 4.31 Tool-less guard adjustment: Yes
The Black & Decker 820-watt angle grinder is a durable, powerful tool that makes cutting and polishing tasks easy. Its motor runs at 12000 RPM to make all grinding and cutting operations easy and fast. The tool is ergonomically designed with a perfect body grip and has a motor grip switch. The tool works well on stone, granite, metals, and more. Thus it is an ideal tool for home or professional use.
An ergonomic design makes this angle drill perfect for metalworking and polishing. The perfect tool for any household, the versatile 4-inch/100mm size fits into tight spaces easily. For use with cutting and grinding discs, drill bits, and stone, granite, and metal.
This tool is ergonomically designed so that the worker has a strong grip on it and has safe handling. This tool is the highest price on the list. The tool is for medium to high-level activities. This tool is actually 4inch rather than 4.5”. I include this tool in the list just because of its high reviews on Amazon.
The power of this grinder is 820 watts with a cutting wheel size of 100mm.
The power full motor of 820watt has a top speed of 12000rpm.
The spindle size is 10mm and the grinder comes with a power cable of 2m in length.
This power tool weighs 4.31 pounds with dimensions of 12.28×6.14×3.78 inches.
What’s inside the pack?
- 4” Grinder
- Locknut and safety guard
- locknut key and Allen Key
2. BOSCH 4-1/2 Inch Angle Grinder GWS8-45
Brand: Bosch Model: GWS8-45 Power Source: Corded, 7.5A RPM: 11,000 Disc Size: 4 ½ inch Weight: 4.2 pounds Tool-less guard adjustment: Yes
The angle grinder is the perfect tool for any homeowner. It has a slim design which makes it easy to move around and store in tight spaces. Perfect for hard surfaces, the grinder will offer fast and efficient work. The direct airflow will also help keep dust to a minimum. This product is designed with ergonomics in mind so it provides optimal comfort for all users. The side handle can also be used as an extra grip, making effortless moves possible.
This machine is lightweight and ergonomically designed with a slender grip circumference that allows a user to work comfortably. This machine has a direct airflow that diverts the dust away from the user and other major components of the machine itself. When the bushes are worn out the machine stops automatically to let us know the bushes need replacement.
The angle grinder from Bosch is engineered to be not only powerful but also very safe. It’s designed for a variety of purposes, including the preparation of metal, masonry, and wood. It’s also ideal for grinding and cutting tile and marble. It’s been tested to meet EN standards in terms of sound level. It runs on a 4-1/2-inch wheel to keep it from taking up too much space.
This Power Tool Weighs Only 4.2 Pounds.
It has a powerful 7.5 amp motor which produces a speed of 11000 no-load rpm. It comes with an 8ft cord with a product dimension of 1133.7 inches.
The body is made of plastic.
What’s inside the pack?
- Spanner wrench
- abrasive wheel
- wheel guard
- flange kit
- auxiliary handle
3. DEWALT Angle Grinder Tool, Paddle Switch, 4-1/2-Inch, 11-Amp (DWE402)
Brand: DeWalt Model: DWE402 Power Source: Corded, 11A RPM: 11,000 Disc Size: 4 ½ inches Weight: 6.1 pounds Switch: Paddle Tool-less guard adjustment: Yes
DEWALT has been designing and manufacturing power tools for over 100 years. They are recognized as being one of the world’s best power tool manufacturers. Their products are high quality and dependable, which makes them a great choice for any home or professional project. This awesome angle grinder comes with many features that set it apart from many other manufacturers’ products. It runs at a faster speed than most other brands, which means it gets the job done quicker! It also has an impressive 11,000 RPM.
This machine has a one-touch guard adjustment system that allows the user to adjust the guard in a single touch with no buttons or levers to pull. it has a wrench freewheel removal system which does not require a tool to unlock the disc. This angle grinder is great because it includes a pedal switch. The pedal switch uses a stop and starts the grinder. Dust Ejection System provides durability by ejecting damaging dust and debris.
This Dewalt angle grinder is ideal for grinding in tight spaces with high impact characteristics. The 11,000 RPM motor provides the best power to weight/size ratio available with the ability to withstand long periods of continuous use. The high-impact plastic/metal housing offers durability and long life expectancy.
This item’s dimensions are 15.63 x 5.94 x 4.81 inches with a powerful motor of 11amp capable of producing 11000 rpm and 1014 horsepower.
What’s inside the box?
- position side handle
- touch Guard
- HEX wrench
4. Makita 9557PBX1 4-1/2″ Paddle Switch Cut-Off/Angle Grinder
Brand: Makita Model: 9557PBX1 Power Source: Corded, 7.5A RPM: 11,000 Disc Size: 4 ½ inch Weight: 4.5 pounds Tool-less guard adjustment: Yes
This machine has a soft start feature. It has a special labyrinth construction that protects the motor and seals from debris, dust, and foreign particles for longer life and durability. It has an extra-long paddle switch. It has an ac dc switch to switch between both modes. It HAS A Spindle lock for easy disc change and has a lock-on feature.
Makita is legendary for producing high-quality tools that deliver superior performance. The extra-large paddle switch allows you to operate the tool in a comfortable manner. The thick coil wires are wound more closely to reduce heat loss and energy loss.
Get the power and performance you need with the Makita 9557PBX1. This model has an aluminum housing and a large paddle switch that provides comfortable operation. All ball bearing design and metal gear housing for durability ensures you get long-lasting power. It’s designed with an aluminum case, so it’s durable and lightweight.
This machine is around 4. pounds with a body made out of plastic.
It has a motor of 7.5amp which produces a speed of 11000rpm.
What’s inside the box?
- diamond blade 4.5”
- grinding wheel
- wheel guard
- Lock nut
- lock nut wrench
- side handle
- inner flange
- Carry case
5. Metabo HPT Angle Grinder G12SR4
Brand: Metabo HTP Model: G12SR4 Power Source: Corded, 6.2A RPM: 10,000 Disc Size: 4 ½ inch Weight: 4 pounds Switch: Paddle Tool-less guard adjustment: Yes 5-Year Warranty
This lightweight grinder is the best companion to have for every workshop, house, or farm. Designed for use in the most tight spaces, this 4-1/2″ angle grinder is small enough to fit under counters and workbenches with ease. Lightweight and durable, it’s the ideal choice for a variety of jobs.
Reduce fatigue with its smaller grip and redesigned labyrinth design for better dust and debris durability. A spindle lock secures the tool against accidental rotation so you can keep your hands free to hold on to workpieces or tighten a bolt. The included 5 grinding wheels & Hard Case.
If you’re looking for a smaller size grinder without sacrificing power, look no further than the Metabo HPT 4.5-Inch Angle Grinder. This compact grinder is perfect for a variety of uses including gardening, metalworking, and home improvement projects. This angle grinder has a low-profile gear case designed to reduce fatigue when working in tight spaces.
It has a 6.2amp motor with an astonishing 980watt of power. It has a spindle lock for quick and easy removal of discs/wheels. The power switch is a left-mounted slide type and has the quick-off feature for added safety. Its prominent feature is a low-profile gear case which allows the grinder to reach the corners and small areas. The product weighs around 4 pounds with dimensions of around 10.15×4.5×2 inches
What’s inside the box?
- grinder wheel
- Wheel Guard
- spanner wrench,
- case for carrying
- abrasive depressed center wheel (5pcs)
6. WESCO 6 Amp Angle Grinder Tool, 11000RPM 4-1/2Inch Angle Grinder WS4751U.1
This versatile grinder has a strong and long-lasting motor and a powerful 4.5-inch steel wheel. It has a double guard to prevent sparks from flying, and it has a fast heat dissipation from the port to extend durability. It is designed with an angle that will easily grind or sand through any surface up to 30 degrees. You will get the results quickly by using this grinder. It is highly recommended for DIY projects, home improvement, and landscaping.
This angle grinder is a great choice for any homeowner. This cordless model has a 6 amp motor that allows for easy cutting and grinding on various materials. The wide range of applications makes this machine the ideal choice for any homeowner. It’s made with a durable wheel guard to prevent sparks and metal chips from flying during use. Fast heat dissipation from the port extends the durability of this unit.
The item weighs around 5.45 pounds with dimensions of around 13.584.364.37inches. This tool has a 6A motor with 720watt of output power which has the capacity of producing 11000rpm. The machine has an easy disc change spindle for fast and easy disc change. 2 position handle is available for both left and right-hand people.
What’s inside the box?
- Grinder 4.5 inch
- Auxiliary handle
- wheel guard for grinding
- Metal grinding discs 3
7. PORTER-CABLE Angle Grinder Tool, 4-1/2-Inch, 7.5-Amp (PC750AG)
Brand: PORTER-CABLE Model: PC750AG Power Source: Corded, 7.5A RPM: 10,000 Disc Size: 4 ½ inch Weight: 3.5 pounds Tool-less guard adjustment: Yes 3 year limited; 1 year free service
The PORTER-CABLE 7.5amp Angle Grinder Tool is a versatile and essential piece of equipment for all your job site needs. This tool is extremely powerful and durable yet lightweight enough to be used comfortably for extended periods of time. The gear housing increases Jobsite durability and tool longevity while the 3-position adjustable side handle of the hand grinder allows greater control in multiple positions. This angle grinder has a soft-grip handle for improved user comfort and control. it’s a small-angle grinder that provides a wide range of features at a reasonable price.
This durable and powerful angle grinder is ideal for grinding, cutting, sanding, and polishing a broad range of metal materials. It comes with a rubber ring in case you are not going to be grinding concrete or something that will damage the housing or gears of the tool. Spindle locates in a 3/4″ square drive for quick and convenient tool change-out.
This robust-looking tool has a powerful motor of 7.5amp with a cast metal gearbox which delivers a 10000RPM.
These grinders weigh 3.5 pounds with dimensions of 17.164.69 inches. it has a 3 point side handle attachment option. has a spindle lock for easy and quick disc change. has an extended power switch that allows the user to on and off the tool even with the gloves easily.
What’s inside the box?
- Grinder with 6 feet cord
- Metal Grinding wheel
- Spanner wrench
- Side safety handle
8. CRAFTSMAN Small Angle Grinder Tool 4-1/2-Inch, 6-Amp (CMEG100)
Brand: G LAXIA Model: ### Power Source: Corded, 6A RPM: 11,000 Disc Size: 4-½ inch Weight: 5.69 pounds Tool-less guard adjustment: Yes
This angle grinder is designed to provide maximum versatility and durability. The compact design makes it easy to store and transport. The 4-1/2″ wheel provides complete access to all grinding operations, while the added side handle allows for easy transportation. The 6A mini angle grinder has an adjustable speed control that can provide up to 3,000 OPMs. It is simple to operate and offers flexibility in the grinding process.
It is the best angle grinder for grinding and cutting using a single steel wheel as its cutting wheel. The G LAXIA 6A angle grinder features a high-performance design which makes it ideal for a wide range of applications. The safety guard helps to prevent excess material from being ground under control and includes protectors to help guard against sparks and debris. An air intake system helps to cool the motor for longer life and is designed to be interchangeable with other models in the line.
This machine comes with a 6 amp (750) watt powerful motor with the capacity of producing 11000rpm.
It has 2 side handle installation options. Air inlets are designed to ensure motor cooling. It has an aluminum diecast gearbox. The spindle lock is there for quick disc change. The handle is rubber-coated for an easy and strong grip. The weight of the item is around 5.69 pounds with dimensions of 12.954.8 inches. It has a flat gear head for working in a small space area.
What’s inside the box?
- Pc cutting wheel
- Auxiliary handle
- Safety guard
- User manual
- warranty Guard
9. Craftsman small grinder (CMEG100)
Brand: CRAFTSMAN Model: CMEG100 Power Source: Corded, 6A RPM: 12,000 Disc Size: 4 ½ inch Weight: 4.56 pounds Tool-less guard adjustment: Yes 3 Year Limited Warranty
The CRAFTSMAN 4-1/2-Inch Angle Grinder Tool is engineered for superior performance and durability. The 3position handle allows for control in different applications. It works with the Versatrack Wall Organization System that allows you to store tools in a neat and organized fashion. This tool is compatible with the Versatrack Wall Organizer System. Hook and accessories are sold separately.
Craftsman angle grinders are the ideal solution for grinding, cutting, polishing, and sanding. Durable construction makes these tools last for years without a problem. You get a durable angle grinder tool with the Craftsman angle grinder tool. This small angle grinder tool is perfect for small jobs such as grinding metal and plastic.
This 4.5inch grinder is powered by a strong 6amp motor producing 12000rpm. The tool weighs around 4.56 pounds with dimensions of around 12.273.454.43 inches. it has a 3 position handle adjustment system allowing greater flexibility and movement. The handle is contoured at an angle for easy grip. Simple lock for easy and quick wheel/disc change
what’s inside the box?
- 3 position handle
- Grinder 4.5 inch
- Safety Guard
- Grinding Wheel
10. TACKLIFE 8.5AMP (P9AG115) Angle Grinder
This angle grinder is a great choice for general DIY and woodworking jobs. The anti-vibration side handle helps to increase comfort and control during use, while the carrying bag helps to protect your tool from damage. The cutting wheel and grinding wheel are both made from steel, increasing the durability and longevity of the tool’s performance over time. The cutting wheel’s guard ensures safety when used under risk, while the grinding wheel’s guard ensures safety when used under risk.
The tacklife P9AG115 8.5 AMP Grinder provides professional-grade grinding for use in construction and industrial applications. The tacklife P9AG115 Angle Grinder is equipped with an anti-vibration handle to provide a more comfortable grip for long hours of use. The tacklife P9AG115 Angle Grinder is equipped with a cutting wheel guard to prevent accidental contact with the grinding wheel, and increase the life of the tool.
THIS POWER TOOL IS EQUIPPED WITH A 8.5AMP 1020 WATT MOTOR WITH THE SPEED OF 12000RPM high-performance motor. Item weighs around 6.89pounds. with a product dimension of 14.3x6x6inche. Power of this grinder ios 1020watt.
What’s inside the box?
- 1 tack life angle grinders
- Anti-vibration side handle
- carrying bag
- Grinding wheel
- Cutting wheel
- flap disc
- grinding wheel guard
- Cutting wheel guard
- flange kit
- user manual
- warranty card
11. BLACK+DECKER Angle Grinder Tool, 4-1/2-Inch, 6 Amp (BDEG400)
Brand: Black & Decker Model: BDEG400 Power Source: Corded, 6A RPM: 10,000 Disc Size: 4 ½ inch Weight: 4.51 pounds Tool-less guard adjustment: Yes 2 year limited manufacturers warranty
Designed with a narrow body for a comfortable grip, this 4-1/2″ compact angle grinder features a small 0-45° angle adjustment for precision grinding. Sharper edges are a breeze with the included metal gear case, and the 3-position side handle provides added comfort and control.
Durable metal gears ensure long life, and the included metal grinding wheel is ideal for metal removal. The wheel guard is there to help protect fingers and hands from the grinder’s moving parts. Ideal and low-cost machine for general use. The machine is not designed for heavy-duty jobs.
This corded tool is designed for fast grinding and polishing work on metal surfaces. The tool is able to cut, grind, sand, polish, and shape metal of any thickness. It is equipped with a 4-1/2″ wheel for metal grinding work. The tool is fitted with a side handle that makes it easy to control the angle grinder.
THIS MACHINE HAS A METAL GEAR CASE WITH 3 POSITION side handles for comfort and control. has a narrow body for a comfortable grip. The motor produces anm rpm of 10000rpm. The weight of the machine is 4.51 pounds with dimensions of 220.127.116.11 inches.
what’s inside the box?
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4.5 inch angle grinder with paddle switch
The 4.5-inch angle grinder with paddle switch can be used by workers in every trade to cut, grind or shape metal pieces. Using the highest quality construction methods, DeWalt’s 4.5″ Angle Grinder is made to withstand years of heavy-duty use and abuse. DeWalt 4.5″ Angle Grinders come with a paddle switch which allows the operator to run in forward and reverse without having to change the position of their hand from top to bottom, increasing control for better handling.
Frequently Asked Questions
What is the best 4.5 inch angle grinder?
Black & Decker, and Dewalt is one of the best angle grinders. Today 4.5-inch angle grinders are more powerful than ever, offering construction professionals and hobbyists alike a variety of options when it comes to 4-inch grinding wheels. 4.5-inch angle grinders are designed with different features that make them unique and more powerful.
4-inch angle grinders can range from $40 to over $300 for the more professional models and include a variety of features. 4.5 degree 4-inch grinders are designed with a variety of different materials and offer an array of power options, depending on your needs.
Can angle grinders be used for cutting wood?
Yes, it can be used, but it’s not advisable. It’s better to use tools specifically designed to cut wood.
How to consider RPM for grinder and disc?
Always make sure the rpm of the disc or wheel is more than the rpm of the angle grinder. We cannot use a cutting wheel that is designed for 10000 rpm on a grinder with rpm 12000.
Always follow and consider manufacturer rmp values.
What operations can be performed using an angle grinder?
Cutting, cleaning, buffing, sanding, grinding, and in some cases carving can also be done.
What is angle grinder kickback?
Angle grinder kickback is when the disc got stuck or jams in the workpiece. It happens when the disc type or speed is not correct for the workpiece you are working on. Try to adjust the speed and type of disc and we can overcome this issue.
Can angle grinders be used for cutting stainless steel?
Yes, it can be used for cutting stainless steel and grinding SS. Make sure to use a disc specially designed for ss. While grinding high surface finished SS black marks will appear on it due to heat which then had to be removed using SS cleaner or fine sandpaper
What is an 4.5 Angle Grinder?
A 4.5 angle grinder or 4 1/2 angle grinder is a power hand tool used for grinding, polishing, buffing, and cutting different kinds of material. In general 4.5 grinders are less powerful than larger 4-inch models (some of the smaller 4-inch models are 4.5 inches in diameter). 4 1/2 angle grinders use 4 ½ inch grinding discs, 4 ½ inch sanding discs, and 4 1/2 inch polishing pads.
Angle Grinders are a very versatile power tool to have in your workshop or garage. 4.5 Angle Grinder’s main purpose is grinding wood, metal, and concrete but they can also be used for polishing, cleaning, and sanding surfaces as well as cutting off bolts, stripping wire, and general uses around the house and garden but this 4.5 grinder does not come with 4 common accessories (cut off the blade, wire brush wheel, sanding disc, and grinding disk).
The 4.5 Angle Grinders work at 4500 rpm’s which allows them to cut through surface materials very quickly leaving little room for error such as scratches or marks on the material being worked on.
Which size of angle grinder will be suitable for you?
These are very important factors to consider while buying an angle grinder. The power demand of the job to be done should be properly judged before buying an angle grinder. If you are looking for a heavy-duty machine then you can go for the models with power greater than ½ HP. However, if your work is lighter and more suitable for home use, then you should buy a ¼ or ⅓ HP grinder which will cost approximately $50 to $200.
The power supply of the grinder is either from a cordless source or from the pull cord. The cordless model generally uses rechargeable batteries to provide power while on the other hand, electric models require an electric outlet as a source of energy. Corded angle grinders are more powerful and come with variable speeds that facilitate working in different conditions. However, cordless angle grinders are easy to use and operate but limited in power and speed.
What is the nature of load?
Before buying an angle grinder you need to be clear about its load bearing capacity. If your work involves cutting metals or masonry then you should go with a model that can bear the great load. However, for light and home use, you can buy a model that bears less load.
Angle grinders are available in different power inputs ranging from ½ HP to ¾ HP or more than this. When buying an angle grinder you should always focus on its ampere ratings rather than the manufacturer’s horsepower claims which is a measure of energy consumption, not power output.
How often do you use a grinder?
It is important to determine the nature and frequency of work you want to perform with the angle grinder before buying it. Will it be used for indoor or outdoor works? Generally, professionals prefer corded models as they provide better control and higher power compared to cordless ones. Cordless angle grinders are lightweight and compact in design which makes them easy to use at different locations.
What to look for before buying an angle grinder?
It depends on your usage and the type of workpiece you want to work on but the common features to look for in any grinder are below
- Speed (RPM)
- Brush or Brushless
- Power source (110 or 220)
- Safety Feature
- Shape and ergonomics
Things to Remember
Always choose a disk of Higher rpm than the grinder
Always use the angle grinder with a handle and safety guard.
always wear complete PPE while operating an angle grinder
It’s highly recommended to use a grinder with a dead man switch (also depends upon usage)
If you feel the motor is getting extremely hot then stop the activity and let it cool.
don’t push too hard while cutting or grinding.
it depends upon our usage and type of work to choose a perfect grinder for us. If you want a grinder for general DIY home use then even a small power low rpm grinder will help with less cost but if you want to buy a grinder for heavy work for example you want to buy a grinder for a steel fabrication workshop then its better if we go for heavy-duty high rpm and power grinders with considerable warranty and affordable price range. It is advisable to go after brushless grinders for heavy work as they have a long life before breakdown.