This kind of chainsaw chain grinder is made of sturdy aluminum material, which improves its strength and performance. With working light and anti-slid handle, you can get excellent protection while using it. You can use it to polish chains of 1/4", 3/8" Low Pro, 0.325", 3/8", and 0.404" pitch at home or in your working fields. | Vevor | | Electric Chainsaw Sharpener, 230W Professional Multi-Angle Adjustable Chain Grinder 3000RPM, Electric Chainsaw Blade | Black | Best Buy