These blades are mainly used for cutting leather Skiving knives are made of high-carbon steel Applied to skiving machi Size: standard 1.diameter ( the knife) :117.8u00b10.5 mm 2.diameter ( the big hole in the center ) :34u00b10.4 mm (could be smaller as your requirement) 3.diameter ( the 4 little holes around ) :8 mm weight: 540g packing: one knife in a color box with an opp bag brand : ASAHI or neutral packing term of payment: T/T or LC loading port: NINGBO, CHINA Show More