General description Contains a comprehensive set of 29 high-speed steel (HSS) drill bits, designed for precision drilling in various materials. The bits range in size from 1.0mm to 13.0mm, with increments of 0.5mm, making it suitable for a wide array of drilling tasks. Technical specifications Number of bits: 29 Size range: 1.0mm to 13.0mm Increment: 0.5mm Additional sizes included: 3.3mm, 4.2mm, 6.8mm, 10.2mm
AmazonHigh Speed Steel (HSS) provides good hot hardness when drilling 118 degree conventional point provides easy re-grinding Steam oxide finish reduces built-up-edge and helps lubricity Patented Silver ring provides clear diameter marking For use on machines or hand held applications
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