Best 4 1/2 Angle Grinder Review on a Budget

(Last Updated On: September 6, 2022)

An angle grinder is a handheld power tool that can be used for a variety of different projects, including grinding, cutting, and polishing. While an angle grinder is a versatile tool, it’s important to choose the right size and type of grinder for the project at hand. For example, a 4 1/2-inch angle grinder is best suited for projects that require precision and detail work.

When shopping for an angle grinder, it’s essential to consider the following factors: disc size, arbor size, motor power, speed settings, weight and durability.

With so many models on the market today, it can be difficult to know which one is right for you. That’s why we’ve put together this buyer’s guide to help you make an informed decision when purchasing the best 4 1/2 Angle Grinder.

Editor Pick – Top Best 4 1/2 Inch Angle Grinder

Best Overall
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)
Top Selling
PORTER-CABLE 20V MAX* Angle Grinder Tool, 4-1/2-Inch, Tool Only (PCC761B)
Editor Choice
Milwaukee 2780-20 M18 FUEL 4-1/2" / 5" Grinder, Paddle Switch No-Lock
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)
PORTER-CABLE 20V MAX* Angle Grinder Tool, 4-1/2-Inch, Tool Only (PCC761B)
Milwaukee 2780-20 M18 FUEL 4-1/2" / 5" Grinder, Paddle Switch No-Lock
Best Overall
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)
Top Selling
PORTER-CABLE 20V MAX* Angle Grinder Tool, 4-1/2-Inch, Tool Only (PCC761B)
PORTER-CABLE 20V MAX* Angle Grinder Tool, 4-1/2-Inch, Tool Only (PCC761B)
Editor Choice
Milwaukee 2780-20 M18 FUEL 4-1/2" / 5" Grinder, Paddle Switch No-Lock
Milwaukee 2780-20 M18 FUEL 4-1/2" / 5" Grinder, Paddle Switch No-Lock

Last update on 2022-09-24 / Affiliate links / Images from Amazon Product Advertising API

As we’ve mentioned, you need to consider many factors when looking for the most suitable 4 1/2 angle grinders for your needs. Here is the buying guide for you.

Size of disk

The most common disc sizes available are 4” (100mm), 4-1/2” (115mm), 5” (125mm) and 6” (150mm). Choose the correct disc size based on the material you’ll be working with and the desired results. For example:

  • If you’re working with metal or stone then opt for a larger disc size such as 5″ or 6″. This will give you more control over your cuts and prevent damage to delicate materials.
  • However, if you’re planning on doing precision work or need to remove stubborn material then go with a smaller disc such as 4″ or 4-1/2″. Keep in mind that smaller discs wear out faster than larger ones, so they will need to be replaced more often.

Arbor size

The arbor size refers to the hole in the center of the grinding wheel where it attaches to the spindle of your angler grinder. The most common 4 inch angle grinder arbor size arbor sizes are 5/8” (16mm), 3/4” (20mm) and 1” (25mm). Again, choose the correct size based on the material you’ll be working with and the desired results.

Source of Power

Battery and corded are two types of grinders you can have. A battery-powered one offers more convenience and flexibility in work. On the contrary, you need cord and power outlet to power up the corded machine.

Speed Settings

Most angle grinders have adjustable speed settings ranging from 4500 RPM to 12000 RPM. The higher the speed setting, the faster your disc will rotate, which is ideal for tougher projects. Conversely, lower speeds are best suited for delicate materials that require more precision work, such as polishing or buffing.

Dust Ejection System

When working, the grinder may be exposed to dust and debris. It can damage the machine and reduce its durability. Make sure you picked one has a good dust ejection system, so you can enjoy using the grinder for a long time.

Soft Start Mechanism with On/Off Switch and Position

A soft start technology allows the user to start the machine easily. If you want to fasten your working process, having the soft start technology will help you a lot.

On/off the machine seems easy. But if the switch is not in a convenient position, you may find difficulty turning on and off the grinder. So it is important as well to consider the switch type and position.

Weight & Durability

When selecting an angle grinder, it’s also essential to consider both weight and durability. If you’ll be using your grinder frequently, then opting for a lighter weight model is probably your best bet. As it’ll be less fatiguing to use over extended periods of time.

However, if you need a durable grinder that can withstand heavy-duty projects, then go with a heavier model. Just keep in mind that the heavier the grinder, the more difficult it’ll be to maneuver.

Top 7 Best 4 1/2 Angle Grinder Reviews

Now that you know what factors to consider when shopping for an angle grinder, it’s time to take a closer look at some of the best 4 and a half inch grinder models on the market today.

1. Dewalt DCG412B- Best for 115mm & 125mm Angle Grinder Disks

Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)
  • 8,000 rpm motor provides high power for cutting and grinding applications for the angle grinder
  • DEWALT grinder comes with Quick-Change Wheel Release allowing tool free wheel removal without need for a wrench
  • Tool-free guard of the metal grinder allows for quick and easy guard adjustments/positioning

Last update on 2022-09-24 / Affiliate links / Images from Amazon Product Advertising API

The DCG412B 20V MAX* Lithium-ion 4-1/2” grinder is a versatile and powerful tool that can tackle a variety of jobs. From grinding to cutting, this robust little grinder can do it all. With its compact size and lightweight design, the Dewalt 4 1 2 inch angle grinder is perfect for maneuvering in tight spaces and getting the job done quickly and efficiently.

The motor delivers 8,000 RPMs of power for fast material removal, making it ideal for tackling tougher jobs. The keyless metal gear case allows for easy access to the brush caps for servicing, while an adjustable guard helps protect against kickback during use. A convenient 2-position side handle provides added control during operation.

The 20v Lithium-Ion battery provides a longer working time. By installing 5A battery, it can run up to 20 minutes continuously. Along with the power and run time, it offers easy maneuvering and comfort. The quick disk change features allow you to remove wheels anytime without using any tool.

Besides, you can easily adjust and position the guard with an adjustment feature for this metal grinder. The 2-finger trigger switch delivers a comfortable on/off. It has additional comfort gripping and lock-off button that prevents any unusual accident.

The 2-position side handle allows the user to enjoy better control while working. Unlike most 4 1/2-inch cordless angle grinders, it is compatible with 5” disc on this 4.5” grinder as well.

  • High power motor to cut and grind easily
  • Delivers better control and maneuvering
  • Easy on-off with the highest safety
  • Adjustment of wheels and guard without any tool
  • Compatible 5-inch discs
  • The battery life could be better

2. Bosch 1375A- Best Corded 4 1/2 Angle Grinder

BOSCH 1375A Corded 4-1/2-Inch 6 Amp Angle Grinder
  • COMPACT: weighing only 3.75 pounds, the grinder is compact and ideal for metal workers, vehicle fabricators, plumbers and other professionals who use grinders on a daily basis
  • POWER: features a powerful 6.0 AMP motor to produce 11,000 no load rpm for professional cutting and grinding applications; the efficient motor was designed with an extremely small field diameter, letting the user grind or cut with ease
  • COMFORT: offers a 2-position side auxiliary handle specifically designed to angle to a natural position for maximum operator comfort; the top handle of the angle grinder is also ergonomically designed

Last update on 2022-09-24 / Affiliate links / Images from Amazon Product Advertising API

If you’re looking for a durable, powerful and affordable angle grinder, the Bosch 1375A is a great choice. It’s a 6 amp corded 4-1/2-inch angle grinder that delivers plenty of power for most grinding and cutting applications.

It has a metal gear housing for durability and longevity, as well as an ergonomic design that makes it easy to handle and maneuver. It also has a lock-on switch for extended use.

The Bosch 4 1 2 inch angle grinder 1375a comes with a two-position side handle that can be mounted on either side of the body for left or right handed users. It also includes an internal voltage regulator (IVR) system, which protects the motor from overload by automatically shutting off when needed.

Besides, this grinder can generate up to 11,000-RPM power so that it can be grinding and cutting the metal easily. A small field diameter makes it easier to cut metal. In addition, its 5/8 inches to the 11-inch spindle is compatible with a wide variety of sizes.

Apart from that, it features an epoxy-coated design to deliver longevity. Its sealed switch keeps dust and debris away from the machine to keep it safe and durable.

Overall, the Bosch 1375A is a great choice if you’re looking for an affordable and durable angle grinder that can handle most grinding and cutting tasks around the home or workshop.

  • Corded design for unlimited power source
  • Powerful motor to cut through any metal
  • 2-position side auxiliary handle for comfort
  • Coated and sealed design ensure durability
  • Adjusting the guard is a hassle

3. BLACK+DECKER (BDEG400)- Best Rated 4 1/2 Angle Grinder

BLACK+DECKER Angle Grinder Tool, 4-1/2-Inch, 6 Amp (BDEG400)
5,906 Reviews
BLACK+DECKER Angle Grinder Tool, 4-1/2-Inch, 6 Amp (BDEG400)
  • Metal gear case for durability and longer life
  • 3 Position side handle provides added comfort and control
  • Spindle lock for easy accessory changes

Last update on 2022-09-24 / Affiliate links / Images from Amazon Product Advertising API

The angle grinder should be comfortable and compact to enjoy any welding or construction work. That’s exactly what you will get from BLACK+DECKER Angle Grinder Tool.

Featuring with a 6 amp motor & 120 volts, this grinder provides high speed operation of up to 10000 RPM. It has a metal gear case for durability and spindle lock for easy accessory changes. With its compact design and lightweight construction, it’s easy to use in tight spaces and maneuver around your work area. Plus, it comes with two grinding wheels (one coarse and one medium) so you’re ready to go right out of the box.

Also, the 3 Position side handle lets you adjust your handle and narrow body will deliver a more comfortable grip. Since it features a corded design, the power supply won’t be a problem here.

Whether you’re grinding, cutting or polishing, the BLACK+DECKER BDEG400 4-1/2-Inch Angle Grinder is up to the task. It’s ideal for metalwork, including removing rust from iron railings or preparing welds prior to painting. You can also use it on wood; create decorative effects like beveling edges or rounding off corners on picture frames or furniture legs with ease. Best of all, this versatile tool comes at an unbeatable price; add one to your workshop today!

  • 3 position handle for comfort
  • Narrow-body for better grip
  • Powerful corded motor for grind and cut
  • Suitable for versatile projects
  • The spindle locking system allows easy accessories changes
  • The on/off switch is hard to operate

4. AVID POWER – Best Angle Grinder 4 1 2 for Porcelain Cutting

Angle Grinder 7.5-Amp 4-1/2 inch with 2 Grinding Wheels, 2 Cutting Wheels, Flap Disc and...
  • Powerful Angle Grinder - Equipped with 7.5 Amps motor with 900W max output power, this portable grinder can produce no-load speed of 11000RPM for most demanding applications.
  • Ergonomic Design - Slim, lightweight, and compact body design can provide better comfort and reduce fatigue in professional cutting and grinding applications.
  • Convenient Operation - Integrated spindle lock on the disc grinder is for quicker and easier abrasive wheels replacement; 2-Position auxiliary handle position for greater control, comfort & versatility in all applications.

Last update on 2022-09-24 / Affiliate links / Images from Amazon Product Advertising API

The Avid Power angle grinder is a powerful 900 watts and durable 7.5 amp corded grinder designed for cutting concrete or metal, grinding paint or rust removal and polishing work surfaces with ease.

Also, it has a powerful motor that can deliver up to 11000 RPM output which shows its capability. This easy to use angle grinders comes complete with two cutting wheels (one thin abrasive wheel for precision cuts and one thicker metal cutting wheel), a flap disc for finishing work on wood or metals surfaces.

Plus an auxiliary handle that can be attached in two different positions depending on your needs. The lock-on switch provides comfortable extended use, while the spindle lock makes changing out discs quick & easy!

You will even get a protective cover that will prevent sparks and metal chips to ensure maximum safety for the user.

  • Versatile Tools- Multiple grinding wheels
  • Spindle locked system for easy wheel changing
  • High powerful motor for different projects
  • Ergonomic body design for a comfortable experience
  • 2-Position auxiliary handle for more convenient operation
  • A little bit noisy

5. PORTER CABLE – Best 4 1 2 Angle Grinder Stand Fixture

PORTER-CABLE 20V MAX* Angle Grinder Tool, 4-1/2-Inch, Tool Only (PCC761B)
3,771 Reviews
PORTER-CABLE 20V MAX* Angle Grinder Tool, 4-1/2-Inch, Tool Only (PCC761B)
  • High performance motor of angle grinder produces 8,500 rpm for aggressive cutting, removal and finishing
  • Cast metal gear housing helps dissipate heat during extended use of metal grinder
  • Contoured Overmolded Handle of the hand grinder is optimized for increased comfort

Last update on 2022-09-24 / Affiliate links / Images from Amazon Product Advertising API

When you’re searching for a powerful and durable tool that is perfect for a variety of applications, the Porter Cable Angle Grinder is the name at this stage. To provide flexibility in works, it has featured powerful 20V battery. So that you don’t have to search for a power source to get your job done with this cordless angel grinder.

The ergonomic handle ensures comfort during use, while the 3 position side handle provides added control. Also, it has spindle locking features to make it easier to change the wheel’s facility. So that you won’t have any risk while changing it.

Finally, you don’t need any tool for adjusting the guards to get a better user experience.

  • Offers flexibility of work
  • High-performance 8,500 rpm motor
  • Cast metal enhances the longevity
  • The molded handle offers more comfort
  • 3-position handle provides convenient
  • Need to purchase the battery separately

6. 4 1/2 inch Milwaukee Grinder for the Money

Milwaukee 2780-20 M18 Fuel 4-1/2"/5" Pad, Bare
  • POWERSTATE Brushless Motor: Delivers maximum power and up to 10X longer motor life
  • REDLINK PLUS Intelligence provides optimized performance, electronic clutch, and overload protection using total system communication between tool, battery and charger
  • REDLITHIUM XC5.0 Battery Pack (not included) provides superior pack construction, electronics, and performance to deliver 2X more run-time and more work over pack life

Last update on 2022-09-26 / Affiliate links / Images from Amazon Product Advertising API

If you’re looking for a powerful and reliable bare tool, the Milwaukee 2780-20 M18 always a great option for any DIY. The brushless motor provides ample power for finishing, removing, and cutting projects.

It also ensures 10X longer motor life. Along with that, its intelligence protects the motor from overload and electronic clutch and optimizes performance. The XC5.0 Battery Pack can offer 2X more run-time when working. Besides, its metal housing and gearing system provide a legendary performance that you can get with the corded Milwaukee grinder. In this 4 1 2 inch variable speed angle grinder has a trigger which allows users to adjust their speed based on the application.

Apart from that, you can enjoy working with it for the thin body design with a better gripping facility. It also features an anti-vibration side handle to get more comfort and control of your project. It allows you to change all accessories without any tool. You can even adjust the guard without a wrench.

Overall, the grinder will increase comfort and let you enjoy your work.

  • Brushless motor for better performance
  • It has a safety latch/hold that you use with your index finger
  • Metal housing for added longevity
  • Anti-vibration side handle for a comfortable experience
  • Comparatively noisy

7. Makita 4 1/2 Angle Grinder for Workshop

Makita XAG04T 18V LXT BL 4-1/2"/ 5" Cut-Off/Angle Grinder Kit
  • Automatic speed change technology adjusts speed and torque during operation for optimum performance
  • Active feedback-sensing technology (aft) turns the motor off if rotation of the wheel is suddenly forced to stop
  • The BL Brushless motor eliminates carbon brushes, enabling the BL motor to run cooler and more efficiently for longer life

Last update on 2022-09-26 / Affiliate links / Images from Amazon Product Advertising API

Our research for the four and a half inch angle grinder ends with Makita XAG04T 18V LXT BL 4-1/2″/ 5″ Cut-Off/Angle Grinder Kit. The XAG04T has a brushless motor that delivers up to 8,500 RPM for fast and efficient cutting and grinding. The kit includes two 5.0ah lithium-ion batteries, a charger, an abrasive wheel, and a case.

Makita 4 1/2 Angle Grinder for Workshop

Again, it features exclusive labyrinth construction to ensure a better seal to the motor and bearing. Dust and debris cannot get in due to the seal. The slide switch will make it easier to switch the device on and off. The lock feature ensures the safety of operation as well.

It even offers “tool-less” wheel guard adjustment to fasten the work. When it comes to comfort, the Makita XAG04T is way ahead of its competitor.

The Rubberized soft grip offers comfortable gripping to reduce fatigue during work. You can install the handle on both sides for more control. Overall, this one can be an excellent choice for its superior power, comfort, and ergonomic design.

  • Powerful 8500 rpm motor to get professional grinding done
  • A soft start to reduce the hassle
  • Slide lock and tool-free design for convenient operation
  • Comfortable handle to fatigue-free experience
  • No overheat protection

All Kind of Wheels/Disks: 4 1/2 Angle Grinder Attachments

4 1/2 Angle Grinder Attachments

It’s not a secret that angle grinders are one of the most versatile tools in a home workshop. And while they come with a number of attachments straight out of the box, there are even more available on the market that can make your angle grinder even more versatile. Here are 4 1/2″ angle grinder attachments you may not have known you needed:

  1. Metal Cutting Wheel:
    A metal cutting wheel is great for quickly cutting through thick metal pieces. If you do a lot of work with metals, this is an attachment you definitely need in your arsenal.
  2. Tile Cutting Wheel:
    As the name suggests, a tile cutting wheel is designed specifically for cutting tiles cleanly and efficiently – perfect if you’re working on a tiling project around the house.
  3. Concrete Cutting Wheel:
    Another specialized attachment is a concrete cutting wheel. It will help you quickly and easily cut through concrete. It is ideal when you’re doing any sort of construction or renovation work.
  4. Angle Grinding Flap Disc:
    This flap disc attaches to your angle grinder and helps it double as a sander – perfect for quickly removing paint or rust from surfaces without damaging them further.
  5. Wire Brush Wheel:
    A wire brush wheel is perfect for quickly removing rust or paint from metal surfaces. It’s also great for cleaning up welds before you apply a finishing coat.
  6. Cut-Off Wheel:
    A cut-off wheel is designed for cutting through materials – making it perfect for quick and easy trimming of wood or metal pieces.
  7. Polishing Wheel:
    A polishing wheel attached to your angle grinder can help you quickly buff out scratches or imperfections in metals, plastics, and even glass.
  8. Grinding Wheel:
    A grinding wheel is the most common type of attachment used with an angle grinder. They come in a variety of sizes and abrasiveness levels, so you can find one perfect for your needs.

Dust shrouds for 4 1/2 angle grinder

When it comes to DIY projects around the house, there’s nothing more frustrating than dealing with dust. It gets everywhere and can ruin your work area if you’re not careful. That’s why having a good dust shroud for your angle grinder is essential.

Dust shroud for 4 1//2 angle grinder

A dust shroud is a protective cover that goes over the exposed part of the grinding wheel on an angle grinder. It helps to contain the spread of dust and debris while you’re working, so you don’t have to worry about making a mess.

There are a few things to consider when choosing a dust shroud for your angle grinder. The first is the size of the grinding wheel. Make sure to get a shroud that’s big enough to cover the entire exposed area of the wheel.

The second thing to consider is the material of the shroud. Some are made from plastic, while others are made from metal. If you’re going to be doing a lot of heavy-duty work with your angle grinder, then it’s worth spending extra on a metal shroud that can withstand more wear and tear.

Lastly, make sure to check whether the dust shroud is compatible with your particular model of angle grinder. Different models have different sized flanges, so it’s important to get one that will fit correctly onto yours.

With all these factors in mind, let’s take a look at some of the best dust shrouds for angle grinders on the market.

Last update on 2022-09-26 / Affiliate links / Images from Amazon Product Advertising API

4 1/2 vs 5 Inch Angle Grinders

If you’re in the market for a new angle grinder, you might be wondering what the difference is between a 4 1/2 inch and 5 inch (12.7 cm) model. The answer lies in the size of the discs that each machine can accommodate. 4.5 inch (11.43 cm) models use smaller discs, while 5 inch models can accommodate larger ones. Here’s a look at some pros and cons of each type of machine:

4 1/2 Inch Angle Grinders:

  • More maneuverable than larger. And due to smaller size; it’s perfect for tight spaces.
  • Typically, lighter weight
  • lower price point makes them more affordable for many budgets.
  • It can be fitted with a variety of discs for different applications, including grinding, sanding, and cutting.

5 Inch Angle Grinders:

  • Ideal for larger projects or those that require more power due to their increased size and weight.
  • Can accommodate larger discs, which means they can complete tasks more quickly than smaller models.
  • More expensive than smaller models.

How to cut marble backsplash with a 4.5 angle grinder?

Angle grinders are the go-to tools for cutting marble backsplashes. They’re easy to use and can cut through even the thickest slabs of marble with ease. Here’s a step-by-step guide on how to do it:

  1. Mark out the area you want to cut with a pencil or chalk. Make sure you have a straight edge to follow, so your cuts are clean and precise.
  2. Put on your safety gear, including goggles and a dust mask, before starting up your angle grinder. Marble produces a lot of dust when it’s being cut, so it’s important to protect yourself from inhalation.
  3. Start cutting along your marked line using slow, steady strokes with your angle grinder fitted with a diamond blade designed for cutting stone or tile. As you get closer to the end of your cut, be extra careful not to overheat the blade by going too fast – this could cause it to crack or break apart completely (not ideal). If possible, try moving back and forth slightly as you finish the cut so that heat is evenly distributed across the blade surface – this will help prolong its life span too!
    4 Finish up by smoothing out any rough edges with a sander before wiping down the entire backsplash area with a damp cloth (this will help remove any leftover dust).

FAQ’s- Community Ask Questions & Answers:

How Long Do Cordless Angle Grinders Last?

It lasts almost 30-45 mins if it is carefully handled.

How deep can a 4.5 inch angle grinder cut?

A 4.5-inch angle grinder can cut through material up to 2 inches (5.08 cm) thick. If you’re trying to cut through something thicker than that, you’ll need a different tool.

What kind of grease goes in an angle grinder?

The most common type is lithium-based grease. This type of grease is designed to withstand high temperatures and provides excellent lubrication for moving parts. It is important to note that you should never use petroleum-based greases in an angle grinder. As they can break down under the high heat and cause serious damage to your tool.

Can I use a 4 inch wheel on a 4 1/2 inch grinder?

Yes, you can use a 4 inch wheel on a 4 1/2 inch grinder

Final Verdict

An angle grinder is an essential tool for anyone who does a lot of DIY or home improvement projects. It’s versatile enough to handle a wide range of tasks, from grinding metal to cutting tile. And if you get a good quality model, it will last you for years.

For someone looking to buy the best 4 1 2 angle grinder for a DIY project, we’ve highlighted some top rated 4.5 angle grinder machines that won’t let you down.

Update Logs:

Added Product: 
1. Makita XAG04T 18V LXT

Removed Product:
1. Makita 9557PBX
5/5 - (1 vote)

Mitchel Shawn was a Co-worker and Engineer of a Gardening Tool manufacturing company since 2013 and a passionate researcher on Machinery goods. Picking the right tools for your work-station and making life easier is an untold helping journey by SHAWN. With this Reviewer Guides Blog, you'll definitely get help in revealing the accurate product spec which actually helps in real life works.