Woodtek 120305, Bits, Drill And Boring, Bradpoint, 13/32" Hss Bradpoint Bit Precision ground high speed steel brad point drill bits bore clean, straight holes in tight grained wood. Specifications: Bit Diameter=13/32 in, Flute Length=3-1/2 in, Material=HIGH SPEED STEEL Specifications: Overall Length=5-1/8 in, Shank Diameter=3/8 in