Letter Gauge Drill Bits. Made Of Premium Grade High Speed Steel. Precision Ground 118 Degree Points. Designed To Work In Stationary Or Portable Tools. General Purpose Drilling In Wood, Metal, And Plastic. Letter Drill Bits. Features. Drill Brite Drill Bit Letter Specs. Dimension 1 X 4 X 10 Inches. Cube 40. Weight: 0.1 Lbs