When you want to cut, grind, or sharpen almost anything, turn to Gator Finishing Products. Gator and GatorBlade brand products guarantee results. For cutting metal in small places. Fits pencil or die grinders. Fiberglass reinforced. Size: 4 x 1/16 x 3/8" Grain: aluminum oxide Pack quantity: 5 RPM: 15300 For cutting metal in small places Fits pencil or die grinders Fiberglass reinforced Type 1 Made in USA.