Gaosi Tools Stainless Steel 1 2 4 6 Prong Flat Chisel Leather Craft Tools Hole Punch Tool Set Diy. Lacing Stitching Chisel Punch Tool 3mm Width Flat Chisel 1 2 4 6 prongProng size 2.5mm, between the hole 3mm),about 10 cm long (4 inches).Four sizes 1/2/4/6 prong for choosing, easy and convenient to use Material: Stainless Steel,is durable and useful leather craft tool Anti-slip handles design,exquisite appearance,sharp prong and strong hardness,With anti-slip handles, they are more exquisite, sharp, and hardness enhance Widely use in punch holes in a precise diamond shape that is optimal for stitching leather. Punch durable to use and comfortable to non-slip handle,Cut leather in order.