Gaosi Tools Leathercraft 1/2/4/6 Prong Diamond Chisel Leather Craft Tools Hole Punches Lacing Stitching Perforate (4mm) Adopt high strength steel, it is tough in structure, versatile, sharp Polished and smooth handle is comfortable to hold Strong texture makes it uneasy to distort and break One sharp rhombus tooth is helpful to punch quickly and effortlessly It can stamp holes evenly into your leather crafting project