10PCs 0.5-5mm Round Hollow Hole Punch Cutter Leatherworking Tack Steel Tools DIY Cutter MATERIAL:Drop forged, heat treated steel. Surface coating of oil to prevent rust. FUNCTION:Sharp edges leave a clean ready to use hole in almost any material DIAMETER:0.5mm,1.0mm,1.5mm,2.0mm,2.5mm,3.0mm,3.5mm,4.0mm,4.5mm,5.0mm FIT:Hollow punches make clean holes in gaskets, leather, plastic, rubber, vinyl, and other soft materials ABOUT US:We are a professional factory of all kinds of handwork tools,we ONLY sell tools,and promise the quality of our products.