Numbered 1 - 60 Drill Bit Set Cobalt Tired of always looking for that drill bit you desperately need? Now you can have all of them right at you fingertips. All Index boxes are the highest quality made.
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Nice set of bits. Had all the sizes I needed.
Drill Bit Set 1-60 Numbers Cobalt USA
Drill Bit Set 1-60 Numbers Cobalt USA
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These are M42.
Numbered and letter drills are actually for the gaps between fractional and metric sizes. A #10 is .193 inch and 4.90mm for example.