7/32", Turbo Max Drill Bit, Self Starting Tip, Starts Fast & Does Not Walk Or Skate, Computer Designed Cutting Edges Provide Free Cutting Action With Less Heat At Edges For Longer Life & Faster Drilling, Unique Shoulder Design Provides Clean Exit Hole, Black Shank With A Gold Flute, 3 Flats On Shank To Prevent Bit From Slipping In Chuck.