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7 Piece Set. High torsion HSS R rolled drill bit set with reduced risk of breakage. Suitable for alloyed and non alloyed steel up to a tensile strength of 900 Nmm², non ferrous metals, cast iron, hard plastics. Rolled spiral flute and ground point with oxide coating allows rapid chip removal. Features 2 cutters and 2 flutes. Supplied in a compact case.
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