Brand NEW! Get a fast and efficient way to switch from screw driving to hole drilling and back with the DEWALT Steel Countersink Set. By just tightening the Rapid Load Holder (sold separately) into your drill or drill/driver, you can quickly insert or eject hex-shank drill bits and screw driving tips as necessary. This set works with all 3/8 and 1/2 in. drills and drill/drivers. 1/4 in. shank that requires a minimum 1/4 in. chuck 1-step drilling, countersinking and counter boring in fine wood High-speed steel construction 4-cutter countersink and tapered drill bit design for reliable speed and a clean finish - All international buyers are responsible for all tax, duties and/or customs fees.