Features: 1.One-piece design, tight interface, sharpened blade, firm and durable. 2.High-quality high-speed steel, the overall hardness of HRC-60 , the edge of the blade through a number of processes fine grinding, sharpened and durable life expectancy. 3.High-frequency quenching heat treatment cutting edge, fine grinding of the cutting edge, cutting is incisive and smooth. 4.Very useful to make a hole in the case for mobile phones and in other small items. 5.Commonly used to punch leather cases at home. 6.This tool is used to punch holes when making mobile phone holsters. This set can basically make all kinds of round holes, square holes and oval holes for making mobile phone holsters. 7.We use it to make mobile phone holsters,and other materials such as cardboard, iron, wire mesh, plastic film, etc. specification:Item Type:Leather Punch Material:High Speed Steel Hardness:HRC 60 Fit for Leather Phone Holster Punch PackageList:24 x Puncher