Specifications: Diameter: 3.4mm / 0.13", diameter accuracy: +/-0.008mm / 0.0003"; length: 100mm / 3.93". High-speed steel rod is with combination of hardness and toughness for wear resistance, hardness HRC61~63||General Purpose: Widely used for processing milling cutters, sharp knives, gravers, punch press needles, bearings sleeve rods of machine tools, high hard ejector rods and center pins||Versatile Steel Rods: Suitable for processing top circle, end face, bore, thread, plane, step, groove. Suitable for copper, aluminum, unhardened steel items||Use Note: Please add some oil during storage and reduce contact with air or do not expose to air for rust protection. The surface is smooth, easy to shape, no cracks formed||Meet Your Needs: Steel Rods can be easy to cut and formed into replacement parts for almost anything. You can cut to any size you want according to your needs
