Chainsaw Information | Sharpening Wheel Selection

Features and Benefits of Super Abrasive Saw Chain Wheels

Get rid of those aluminum oxide (AO) or "pink" wheels and start sharpening your chains using the hardest materials on earth - Diamond for carbide chains or CBN for steel chains - From Diamond Wheel Inc.
These wheels have a full radius and need no reshaping unlike the pink wheels, where in some instances you have to do this every chain.
Eliminates the tooth burning because you do not have to force the wheel due to the harder abrasive and also the metal core of the wheel dissipates any small amount of heat generated.
There is virtually no dust as the diamond or CBN does not break up during the grinding operation.
These Super Abrasive wheels fit in most sharpeners and come in the same dimensional sizes as the pink wheels.
They are also available for most chain pitches of 1/4, .325, 3/8, and .404.
They can last for thousands of chains with little to no maintenance
They are very cost effective, where the price of one wheel may last longer than 5 to 10 pink wheels.
CBN Raker wheels are also available.

Proper Super Abrasive Wheel Selection - Diamond or CBN

Are you sharpening steel or carbide chains? Most chains are steel.
If you are sharpening steel, you want to select a CBN (Borazon) abrasive.
If you are sharpening carbide, you want to select a diamond abrasive.
Never use CBN on carbide chains or diamond on steel chains. They are incompatible.
What kind of cutter teeth are you sharpening?
- For round tooth - round ground chipper: Use full radius wheel.
- For square tooth - round ground semi-chisel: Use full radius wheel.
- For square tooth - square ground chisel: DO NOT use these wheels.

Chain Pitch

What is the pitch of the chain you are sharpening?
Often it will tell you on the chain specifications or it may be calculated by measuring the distance between any three consecutive rivets and dividing by 2.
From the table below select the thickness (T) of the wheel to match the chain pitch.

Chain Pitch

Wheel Thickness (T) WHEEL

1/4, .325, 3/8 Picco

1/8 CS575.8878E

3/8, .404

3/16 CS575-3878E

Diamond Wheel Inc.