29-pc HSS Twist drill set , material : COBALT,HSS 9341,HSS4341,HSS4241,high carbon steel Product DescriptionPower tool accessories, drill bits series, We are producer of drill bit series as electrical hammer drillbits, wood working drill bits, masonry drill bits, HSS twist drillbits, and combined dirll bit sets. 29-pc H. S. S. TITANIUM TWIST DRILL SET: Point Angle: 118/135 material : COBALT,HSS ...
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