Daredevil, 1/2" x 4" x 6", Multi-Purpose Drill Bit, Upgraded Multi-Grind Heads Deliver Up To 85% Faster Drilling In Metal Than Standard Bits, Hex Shanks & Impact Rated Allows Use In Impact Drivers & Hammer Drill/Drivers For Added Versatility, Sharp Ground Cutting Edges Designed For Advanced Performance, Steep Flutes With Ribs Deliver Fast Material Removal In Multiple Materials, Multi-Application Design Offers Drilling In Masonry, Brick, Block, Tile, Metal, Wood & Plastic, Long Life Construction Provides Up To 9X Life In Multi-Material Applications Than Standard Bits, No Skate Tip Design Allows For Cleaner Holes, 4" Flute Length, 6" Length, 6" Overall Length, 1/4" Shank Diameter, 4" Useable Length.