... steel Product DescriptionPower tool accessories, drill bits series, We are producer of drill bit series as electrical hammer drillbits, wood working drill ... , and combined dirll bit sets. 29-pc H. S. S. TITANIUM TWIST DRILL SET: Point Angle: 118/135 material : COBALT,HSS ... ,HSS4341,HSS4241,high carbon steel 29-pc HSS drill bit,titanium color