Lathe Tool Bits : 1.Material: M42, M35, F4341, 4241, 9341, 6542 2.Hardness:HRC80~82 3.Type: Square, Flat,Round Bits Lathe Tool Bits . All kind of material together with square, flat and round bitsLathe Tool BitsHSS Square Tool BitsDetailed Product DescriptionSpecification:Metric System: 22---302, ; length 50---200 mmBritish System: 1/8 *1/8 ; length 4---10Width for flat bar: 3mm-60mmThickness for ...