4pcs C3/K10 Tungsten Carbide Precision Straight Shank Twist Drill Bit - Silver Tone

4pcs C3/K10 Tungsten Carbide Precision Straight Shank Twist Drill Bit - Silver Tone

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Description
Size - overall length: 38mm / 1.5"; cutting hardness (max.): HRC45; tool flute type: spiral The solid carbide drill bit is made of a micro grain tungsten-cobalt alloy with an average cobalt content of 6%.
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