Hs Steel Black Oxide Drill Bit 7/16X5.5In.

Master Mechanic, .4375 inch x 5.5 inch , High Speed Steel Black Oxide Drill Bit, Jobber Length, .375 inch Shank, 135 Point Angle With 4 Cutting Edges Eliminates Walking and Provides Fast Penetration, Black Oxide Tempering Treatment Reduces Frictional Resistance and Improves Chip Flow, Recommended For Wood, Plastic, Wallboard, Plywood, Soft Metals, Aluminum, Brass and Bronze, For Occasional Use In Stainless Steel and Other Hard Metals, Carded.