The Multi-Sharp® Chainsaw Sharpening Kit restores a sharp new cutting edge to the cutters of a chainsaw, without having to remove the chain. The kit includes a depth gauge and a flat file to maintain the right cutter-to-depth guide height, which is essential for correct chain saw operation. The sharpener/file is 4.0mm (5/32in) in size for chainsaws with a pitch of 1/4in, and also 3/8in mini/low profile. This size fits most domestic chainsaws. Suitable for the following makes: Black & Decker, Bosch, Champion, Husqvarna, McCulloch, Partner, Makita, Mountfield, Hitachi, Performance Power, Poulain, Remington, Ryobi, Sovereign, Stihl and most other makes of the above chain pitch. Specifications:Size: 4.0mm (5/32in).Pitch: 1/4 or 3/8in.