How to Use a Bench Grinder

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A Bench grinder is a machine that could be used in different working environments, like automotive, workstations, wood workings, and home workshop. 

The bench grinder could be considered as handy for everything. It could be used for sharpening tools, rounding over and smoothing surfaces

Through the following article, we’re listing for you the operation of the Bench Grinder and how to use it safely.

The 3 Main Bench Grinder Uses

1. Grinding Small Objects

For your safety, always remember to hold the small objects with locking pliers. Holding a small object with your hand might cause injuries for your fingers.

Otherwise, holding your small object with the locking pliers will give you more accuracy and better management of your object.

2. Sharpening objects

If you’re into sharpening tools or objects, you should consider buying a tool that runs at the range of 1750 RPM, while most of the Bench Grinders come with a Grinder that runs at the range of 3500 RPM.

Sharpening tools and objects don’t need a high-speed Grinder to do the job, it works better with the low speed to guarantee that the metal won’t overheat on the Grinder.

3. Cutting a Piece of metal

If you’re into cutting hard metal pieces, first, you should make sure you are using a wheel that able to cut this hard metal to avoid damages in your wheel. 

To cut a piece of metal, after marking the part you’re willing to cut, make sure that you’re holding both sides of the piece to avoid mistakes in your process. 

Understanding the Parts of a Bench Grinder

First, you should know about your Bench Grinder’s tools the usage of every piece of them. Safety standards are necessary to follow, so we’re mentioning some of the safety tips to consider while using.

The Wheel

The main wheels are the most common part of the different types of Bench Grinders. They’re responsible for the main tasks like smoothing, rounding, or shaping tools.

Meanwhile, before working on a tool on your Bench Grinder, make sure that the wheel is made for this type of material. Using a soft metal wheel for works on a hard metal object might cause damages for the wheel See How to Change a Wheel on a Bench Grinder

Wheel Speed Control

Engine’s power is different from a Bench Grinder to another, so you have to know the round per minute (RPM) that the engine can afford. Overloading on your wheel might cause motor damage and destroying your object. Always stick to the safety ranges of the RPM to guarantee your safety.

Wheel Guard

The wheel guard is the part that covers the unused part of the wheel to provide the safety standards for your and the people around. Besides, the wheel guard is preventing the wheel from damages while overloading on it. It works as the brakes to stop the wheel.

Tool Rest

The tool rest is used to lean on your objects on it to have full control of your object. Also, it’s made of aluminum to assure the accuracy while sharpening or smoothing your object, it allows you to use the machine on a wide variety of materials and sizes.

Eye’s Shield

The Eye’s main mission is to guarantee your safety from the sparks caused by the operations on your objects. It’s one of the most important pieces to your safety, if your Bench Grinder doesn’t have an Eye’s Shield, you must add it manually.


If you’re going to use hard metals on your Bench Grinders and overload on it, you should consider buying a Bench Grinder with a built-in coolant. Besides, using coolant is much easier than dipping your objects into water to cool it down. 

Tips and Tricks While Using a Bench Grinder

Using an Angle Gauge

If you’re seeking a flawless cutting process, you should consider buying an optimal angle for the object you’re willing to cut. Most of the wood chisels are grounded to about 25◦ angles with a secondary micro-bevel angle of 30◦. 

After marking on the desired angel, put the object on the tool rest in the right position to be cut, the process guarantees more accuracy in your cutting and shaping operations. 

Dress Your Wheels

To assure the cutting and smoothing efficiency of your Bench Grinder’s wheel, keep your wheel smooth and clean by using the wheel dressing squares. 

Dressing your wheel frequently exposes a new wheel grit, a dulled grit could cause damages to your object and overheating it and slows the process.

Which Wheel to Use

Every wheel was made for a specific material with a matching roughness to avoid overheating and damages in both. If you’re grinding wood, it requires a 36-Grit wheel. 

Plane irons and Chisel require a 60-Grit wheel. Shaping metal requires a strong grit, so its perfect match would be the 100-Grit wheel.

Final Thoughts

If you’ve decided to get your Bench Grinder, always remember to stick to the safety standards while using the Grinder. 

The Bench Grinder would be a powerful addition to your workshop if you understood the main functions and abilities. 

Read Next: Best Bench Grinder

John Graham

John Graham

I am a 35-year old avid DIY-er. Ever since I was young, my father used to prompt me to help fix things around the house or even building my own cupboards and shelves.
That’s why I developed the habit of doing everything on my own. And since this is the only way to reach the unique results I really want, I don’t like depending on any services.

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