#3570685 is a Diamond Chainsaw Grinding Wheel. Diamond abrasive wheels are for use on carbide saw chain.
Sold - CBN Grinding / Sharpening Wheels: 1/8 and 3/16
Chainsaw Sharpening Wheels
5 x 3/16 Chainsaw Grinding Wheel 60 Grit
Grinders – NorthAmericaSupply
Chainsaw Grinding Wheel
Diamond/CBN Chainsaw Sharpening Abrasive Grinding Wheel
Grinding Wheels - Harbor Freight Tools
Chainsaw Sharpening Wheels
diamond cbn 145mm 5-3/4 inch chainsaw