... Material: High carbon tool steel T12 GCr15, induction hardened and tempered; HRC62-65-degree4) Shape: Square, Flat, Tri ... ) Other kinds available: Engineer files, needle files, diamond files, precisionfiles, riffler files, milled files, chain saw files and farmer own files6) Chain saw ... alloy tools madeof tungsten carbide, steels 40Hrc and up, ceramic materials and glass.5) Packing: 10pcs/set, slide ...