... : 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm, 16mm Cuts steel, brass, copper, aluminum, rubber and plastic effortlessly up to .025 ... punches are made of a hardened and ground A-2 tool steel UPC No.DescriptionWeight40300"Metric 10" TruPunch® Punch & Die Set2.540315 ...