Question about Craftsman 10" Bench Grinder

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How do you tighten the nuts when changing the wheels on a 6 inch craftsman bench grinder. Thank you...

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There is a left handed thread and a right handed thread on the arbors.

The double-nut method is preferred.


Right Hand Side (RH)
Wrap a piece of rubber or leather around the threads on the LH side of the arbor & hold with pliers, while turning the RH nut CCW.
Left Hand Side (LH)

Wrap a piece of rubber or leather around the threads on the RH side of the arbor & hold with pliers, while turning the LH nut CW.

Note: Hand tighten the nut, then 1/4 turn.
Right Hand Side (RH)
Wrap a piece of rubber or leather around the threads on the LH side of the arbor & hold with pliers, while turning the RH nut CW.

Left Hand Side (LH)
Wrap a piece of rubber or leather around the threads on the RH side of the arbor & hold with pliers, while turning the LH nut CWW.

For grinding stones:
ring test the stone discard the stone if it has been dropped be sure the paper washers are installed on the wheelGRINDER SAFETY 101 (graphic injury video so be warned)

Posted on Feb 25, 2016

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Clamp the shaft behind one wheel with 'Channelock' or 'Visegrip' pliers, then tighten both nuts. Check the new wheels for 'off-center' running by spinning them with your hand. They may fit the shaft tight enough that there is no centering adjustment--use a 'wheel dresser' (either a stone type or a multi-wheel type) to true up the wheel so that there is no radial wobble. Hope this helps!

Posted on Oct 23, 2010


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1 Answer

How do i change a grinding wheel

Unplug the grinder. Remove the guard on the side you want to change. Grasp the wheel with one hand while you turn the nut with a wrench. Remove the nut and arbor washer from the arbor shaft, pull the wheel from the shaft and replace it with a new wheel - DO NOT remove the paper label! Put the arbor washer and nut back on, spin the nut down snug, grasp the new wheel with one hand while you tighten the nut with a wrench. DO NOT overtighten the nut.

It may help to grasp the SECOND wheel (which should still be tight) with one hand while you tighten the nut on the new wheel. It may also help to loosen & tighten & adjust the new wheel several times until it runs as straight as possible before you really tighten it.

After tightening down the nut, dress the wheel with a wheel dresser to get it to run as balanced as possible and give you a smooth round wheel so your workpieces don't bounce against the wheel and so it cuts freely. Repeat as necessary to keep the wheel cutting freely, and to keep the grinding surface flat.

Jul 21, 2014 | Hitachi GT15 BENCH GRINDER 150MM 6 INCH...

1 Answer

How do you change the wheels on this bench grinder

Once you get them snugged a little, you will probably have to hang onto one wheel while you tighten a nut. It's easier if you tighten down one wheel with the other wheel dismounted so you can really grab the arbor shaft.

Do NOT overtighten either wheel - it doesn't need it, and overtightening increases the risk of a catastrophic wheel explosion.

Apr 28, 2014 | Grinders

1 Answer

How do I tighten the nuts on my bench grinder?

A bench grinder has left handed threads on one shaft and right handed on the other,so that the grinding stones don't unscrew the nut as you grind something.I haven't ever gotten around to getting a bench grinder,but on my father's, I used to just hand tighten the nut,then grab the grinding wheel with my hand while tightening the nut with a wrench.(You don't have to make it real tight,as the wheel pushing against the nut will keep it tight)

May 04, 2012 | Heating & Cooling

1 Answer

HOw do I change grinding wheels on a 6 inch Craftsman bench grinder? Thanks.

There should be a guard over the wheel, held by several screws. Remove this. The nut holding the wheels loosen in the same direction the wheels turn so this would be anti-clockwise for the right hand wheel and clockwise for the left wheel. When replacing the wheel, ensure you replace the cardboard or rubber washers on the wheel. These spread the pressure evenly when the nut is tightened.

Apr 25, 2011 | Craftsman Garden

1 Answer

How do I remove the wire brush form a model 9410 grinder?

An ajustable wrench for the 'wire brush end' nut,and a visegrip type plier for the opposing wheel end. Wrap the jaws of the visegrip pliers with tape to protect the spindle opposite the wir wheel. Loosen the nut on the wire wheel end,counterclockwise.REMEMBER: lefty loosey-righty tighty.

Jul 22, 2010 | Craftsman 6" Bench Grinder with Lamp

1 Answer


Below I included a link to the manual for your grinder.
However it will tell you the same thing I'm going to tell you.
Most bench top grinders do not come with a shaft lock. In order to loosen or tighten the retaining nut you need to place a small wooden wedge between the wheel and the metal wheel shroud. This will prevent the shaft from turning. This may seem archaic but it serves a good purpose by preventing the over-tightening of the retaining nut.
Hope this helps.

Oct 15, 2009 | Grinders

2 Answers

How to tighten the nuts on either side of the 6'' bench grinder. I tried hoding he oppisiete side thinking they tightened in opposite directions but no. OR, how to hold the shaft so the nuts can be...

Some models have a hole at the top and under the spark cover that allows for the insertion of a pin or nail to help lock the shaft.
Mine has a hole at the back of the protection plate that allows the shaft to be locked.
Holding the opposing wheel also should allow you to tighten the nut as one is left hand and the other is right hand thread.
The nut can then be tightened
.I dont have a manual on your brand to see what they included to lock this one.

Thankis for using FIXYA

Sep 25, 2009 | Craftsman 6" Bench Grinder with Lamp

1 Answer

How to change the craftsman 6'' grinder wheel?

without having the model number I can only go from experience on other grinders. First you would have to unplug tool and remove outer guard housing to expose the hex nut, one side of the tool would have a left hand thread and the other standard so you would need to hold both the hex nuts at the same tme and try both ways, when you get one off put a GOOD pair of pliers or similar device on the shaft and remove the other wheel

Jul 17, 2009 | Craftsman Grinders

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