Drilling Bits, Chucks & Collets

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Desoutter Style Precision Drill Collet

Desoutter style 932-40 threaded precision machined drill collet with a 332" hole for round, straight shank drill bits. Black oxided to prevent corrosion while enhancing appearance, the size is stamped on the collet.

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Heavy Duty TightFit Threaded Shank Drill Bit

TightFit® threaded shank drill bits are made of M2 or M7 high-speed steel, for drilling hard, tough None
With a 135 degree split-point, 1/4-28 threaded shank and a 5/16" hex adapter for easy removal. ND96
Three lengths of drill bits: LONGS=2 1/8"; SHORTS=1 1/4"; and STUBS=1/2-5/8" (excluding the threads) ND96
TightFit® threaded shank drill bits are black oxided to add lubricity, prevent corrosion while enhan None
These drill bits comply with National Aerospace Standards. ND96

escription:The drill bit complies with National Aerospace Standards. The Standard provides the following description, "A special short flute, heavy duty drill designed for drilling the hard, high strength alloys used in aircraft manufacturing." The drill bits are made from M2 or M7 tool steel with self-centering, 135 degree, P3 split points and a Rockwell C scale hardness of 63.5 to 66. They are manufactured as right-hand tools with 516" hex wrench flats and 14-28 UNF-2A external threads. TightFit threaded shank drill bits are concentric, self-tightening, non-slipping, long life tools designed for work in limited space situations. TightFit threaded shank drill bits WORK EQUALLY WELL IN METAL, WOOD OR PLASTIC.

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