MM 1 Wire GA Drill Bit
Master Mechanic, 1, 378, M7, Black Oxide, Wire Gauge Number Drill Bit, Jobber Length, Straight Shank, 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 1428 Require The Use Of Wire Gauge Bits, Carded.