8Pcs High Hardness Diamond Chainsaw Sharpener-Stone File Diamond Sharpening Wheels Chainsaw File(5/32 Inch 40mm) FAST RESULT: Because there are full and evenly distributed particles on the chainsaw bits, these files can sharpen the chain saw chain steadily and efficiently. Only a few minutes, Get rid of troublesome hand sharpening once and for all._x000D_ DURABLE: The latest, hardest titanium-plated Diamond Wheels we'e ever made, adopted titanium plating process, which means you will enjoy 20% longer lifetime of these bits than others non-titanium-plated._x000D_ EASY TO USE: These bits are specially designed for Electric Chainsaw Sharpener. Only 2 steps to replace. By the way, this titanium-plated files have harder nature, which reduces the number of times you have to replace it._x000D_ Note: There may be many black spots on the wheel surface. It's not that the titanium coating has fallen off, but that the titanium and silicon carbide mixed. This is better for using._x000D_ SUITABLE: 5/32 inch wheels for small 3/8-inch,1/4-inch chainsaw chain and other small blade._x000D_ _x000D_ Material:Emery_x000D_ colour:Gold_x000D_ _x000D_ Package Contents:_x000D_ 8 * Burr grinding stone file 5/32 inch_x000D_ _x000D_ Only the above package content, other products are not included._x000D_ Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_