Why Oregon Chainsaw Chain Sharpeners? You take pride in your work， and we know you work hard every day. The craftsmanship you put into your job or project requires solutions designed and built to exacting standards. Oregon stands by you. Our Oregon 12V Electric Chainsaw Chain Sharpener / Grinder is powerful， lightweight， and easy to use， with a sharpening angle adjustment guide included for accuracy. Oregon chainsaw chain sharpeners work as hard as you do. The Oregon 12V Electric Chainsaw Chain Sharpener / Grinder sharpens most chainsaw chains up to .404\" pitch. The 12 volt chainsaw chain sharpener and grinder features a powerful motor， which runs at optimum 25，000 RPM. Includes: 1 x Oregon 12V Sure Sharp Electric Chainsaw Chain Grinder/Sharpener， with 3/16\

Powerful motor: Runs at an optimum 25，000 RPM

Includes both a 12-volt car adapter and battery clips for convenient use anywhere

Includes one each 5/32"(4.0mm)， 3/16" (4.8mm) and 7/32" (5.5mm) sharpening stones and a collet wrench

Simple sharpening angle adjustment guide for accuracy

Sharpens any round-ground 1/4"， 3/8" Low Profile， .325"， 3/8" or .404" chain

High impact housing holds a powerful motor that runs at an optimum 25，000 rpm

Shank lock feature allows easier stone replacement

Replacement sharpening stones available