The Ozito Chainsaw Sharpener is ideal for fast consistent chain sharpening to help restore your chain to as good as new condition with very little effort. The sharpener includes user-friendly controls for fast, efficient professional results. The bench mounting holes allow the sharpener to be fixed to a workbench for stable and precise sharpening. With both depth and angle adjustment, this sharpener can be used on both 0.325’’ and 3/8’’ pitched chains. This Product Is Intended for DIY use only.