Description: It will be a great tool for you, suitable for all kinds of chainsaws and electric saws. What's Included? 1 x Chain Sharpener 1x grinding head Feature: *Easy to use, simply place the clamp on the bar, position the paw on the tooth, insert the drill into the guide sleeve and rotate the handle. *The paw acts as a stop to ensure accurate and repeatable tooth placement. *All chainsaws can use the standard 30 x 176 with a slotted front angle. *Every time you grind a tooth, all you have to do is pull the chain. The precise sharpness can ensure that every tooth is repaired, making your chainsaw sharp at work.