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#20 3-1/4-In. Wire Gauge Drill Bit, Black Oxide

Master Mechanic

SKU: 443630

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Master Mechanic, #20, 3-1/4", Black Oxide Wire Gauge Number Drill Bit, 135 Split Point Eliminates Walking & Provides Quick Starting, Surface Treated With Black Oxide Finish For Abrasion Resistance & Improved Chip Flow, Designed For Precision Hole Sizing Such As Tapping Threaded Holes, Wire Gauge Diameters Fall Between Fractional Sizes For Most Precise Hole Sizes, Taps Through Sizes 1/4-28 Require The Use Of Wire Gauge Bits, Carded.

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