Creating perfectly round holes has never been easier. The Power Punch is a hand-held apparatus equipped with an array of 7 heat-treated punches and dies to create holes in brass, copper, pewter, plastics, leather, aluminum, and mild steel up to 18 gauge in thickness. An adjustable stop, calibrated from 1/4" to 1 1/2", allows you to locate the hole to be punched exactly where you want it to be. The 7 punches are in the sizes 2, 3, 4, 4.5, 5.5, 6, and 7 mm. Overall length: 8.5". Furnished with fitted plastic case. Made in China.