Ak4701 cobalt drill bit set 19pc metric
High speed steel with 5 cobalt makes these ideal for drilling extra hard materials split tip enables bits to bite workpiece quickly reducing the need for centre mark drills can be re sharpened without affecting their performance supplied in metal storage case contents 1 15 2 25 3 35 4 45 5 55 6 65 7 75 8 85 9 95 10mm
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