For leather lacing. Perfect for large or small jobs, place one blade in the preceding hole for perfect even stitches and a professional looking finished product. Made from 41xx steel, these chisels have incredible strength and toughness due to the case hardening process after the chisels are formed. Beautifully finished with a black electrophoresis coating to prevent surface corrosion and provide wear resistance. This leather slitting punch with 8 blades makes quick work of any project requiring a lot of holes over a large area. Available in two sizes narrow blade (3/32") No. 85488 or wide blade (1/8") No. 851488.