The Bosch 25 Piece HSS-R Drill Bit Set is a comprehensive metal drilling set covering diameters from 1 mm to 13 mm in precise 0.5 mm increments. Manufactured from high speed steel, these twist drill bits are suited to drilling iron, steel, non-ferrous metals, grey cast iron and hard plastics. The HSS-R construction offers excellent elasticity, reducing the risk of breakage during demanding drilling tasks. Compatible with all power tool brands, the set works equally well with hand-held drills a
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