H2648 Hex Shank Hammer Drill Bits - 5/16", 4" Long   See larger image and other views  Your Price:** $1.95 Customers who purchased this item also purchased: H3042 20" Spoked Wheel $15.95 H2644 Hex Shank Hammer Drill Bits - 1/4", 4" Long $1.90 Description Hex shank bits provide superior holding power over standard round shank bits. Individual hex shank hammer drill bits are available in the size that is right for you or buy them by the set. (See H2637, H2638, H2639). Requires 1/2" drill chuck. See page 339 of our 2009 Grizzly Catalog! See similar items in: > Home > Drilling & Boring > Drill Bits Final prices will include state sales tax for items shipped to WA, MO, or PA. Shipping charges for items not shipped via truck freight will be added according to our shipping rates.