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> 20 hss drill bits high speed rockwell hardness 63 tools
20 hss drill bits high speed rockwell hardness 63 tools
20 High Speed Twist Drill Bits & Organizer Great for Metalsmiths, Metal Working, Drilling & Organizing
* This is a new set of 20 high speed steel twist drill bits
* These drill bits are ground and heat treated to a Rockwell hardness of 63
* Sizes are stamped on organizer for easy selection and storage of proper drill size
* These bits measure approximately 0.0135", 0.0145", 0.016", 0.018", 0.02", 0.021", 0.0225", 0.024", 0.025", 0.026", 0.028", 0.0292", 0.031", 0.032", 0.033", 0.035", 0.036", 0.037", 0.038" and 0.039" (0.34, 0.36, 0.4, 0.45, 0.5, 0.53, 0.57, 0.6, 0.63, 0.66, 0.71, 0.74, 0.78, 0.81, 0.83, 0.88, 0.91, 0.93, 0.96 and 0.99 mm)
20 HSS Drill Bits High Speed Rockwell Hardness 63 Tools
