4Pcs Lacing Stitching Punch 4mm Leather Chisel Tool for DIY Craft (Black) -M6

Spacing Punch Set for Leather Hole Punches Tool Lacing Stitching Sewing DIY Leather Craft Tools 1/2/4/6 Pron. One sharp rhombus tooth is helpful to punch quickly and effortlessly. It can punch even and neat holes in leather.

eBay