SODIAL(R)Gary Black Double Head Sheet Nibbler Metal Cutter Drill Attachment Product Name : Nibbler Cutter;Use for : Brass Aluminum Stainless Cutting Diameter : 7.4mm / 0.3";Shank Diameter : 27mm / 1.06" Overall Size : 18 x 5.1 x 7.8cm / 7" x 2" x 3" (L*W*H);Material : Metal, Plastic