Switch between drill functions in seconds with the FastFix interface, saving time and eliminating cost of dedicated, single purpose tools. The Right Angle Chuck is the ultimate solution for close quarters hole or fastener placement. Drill or drive between studs, joists, cabinet or drawer spaces, or virtually any constrained space without switching over to a separate, dedicated tool. 1/4 inch hex drive with wire detent. Accepts Festool Centrotec or keyless chuck. Chuck rotates 360 degrees with 16 presets.