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5/16 JOBBER DRILL SUPER 240UB
31RDJU
Manufactured from premium hi-molybdenum steel. Ultra Bor will substantially outperform cobalt drills in work hardening stainless steel and other tough drilling applications. Drills are nitro-carburized. Low temperature stress relief improves lubricity and toughness.
Item Specifications
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0.3125
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5/16in
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Black and Gold
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3 3/16in
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Jobber Drill
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High Speed Steel
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2
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4 1/2in
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6pcs/package
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135 Degree
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Straight
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Fractional
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0.07 lbs per EA