Oct 02 , 2018

Bench Grinders: Choosing the Right Wheel

Maintaining a bench grinder wheel

Photo 1: Unclog the pores

Rest the dresser on the tool rest and start the grinder. Then turn it off and press the tool against the grinding wheel as it slows. Repeat several times until the wheel feels rough to the touch (wait until it stops, please!).

Wheel dresser

This “star wheel” dresser removes built-up grains of metal that clog the wheel grit.

Photo 2: Ring-test new and used bench grinder wheels

Slide the wheel over your finger and tap the wheel in four places with a screwdriver handle. All taps should sound the same. If they don’t, scrap the wheel. It’s cracked.

Lots of DIYers own a bench grinder. But not everyone knows which wheel to use for which metal or how to care for the bench grinder wheels. So we consulted the experts and came up with these nuggets to keep you in the grind.

First, use aluminum oxide bench grinder wheels for ferrous metals and silicon carbide for all the others (brass, copper, aluminum).

Next, dress the bench grinder wheels regularly to remove clogged grains. Use either a “star wheel” dresser or a diamond dresser available through our affiliation with amazon.com. The diamond style (not shown) “retrues” the wheel a bit. But don’t expect either tool to “resquare” your wheel—that kind of rig costs a bundle.

Theoretically, you can keep using your wheels until they wear down to the label. But you should replace them when they’re too small to use with the tool rest. Before you install a new wheel or reinstall a used one, always “ring-test” it to make sure there are no cracks (Photo 2). Tighten the wheel only enough to prevent it from slipping. Overtightening can crack the wheel.

Required Tools for this Project

The only tools you’ll need are a wheel dresser and a screwdriver.

Related Posts

Here’s How Much You’ll Save In Taxes With an S Corp (Hint: It’s a LOT)
One of my favorite things about having a business is that making small changes can lead to big jumps in profit. In th...
Read More
How to Use Google My Business To Generate FREE Leads For Any Local Business
Google My Business is one of the easiest, most effective, and FREE ways to generate leads to any homes service busine...
Read More
3 Handyman Business Myths Exposed
I get a lot of e-mails from readers who are interested in starting a handyman business, but have a few roadblocks hol...
Read More