Description of IVY Classic 10778 Self Feed Extension
Extends any 7/16" hex shank bit an additional 12", Swift Bore (Registered Trademark). High-carbon steel construction, precision ground black oxide finish with 7/16" hex shank for secure grip. Two set screws and a hex key included. To fasten the shank in place, use the hex key to tighten these screws. Compatible with all 7/16" self-feed bits (IVY Classic self-feed bits: 10761, 10763, 10764, 10765, 10766, 10768, 10769). Length: 12", Shank: 7/16", Fits 7/16" Hex Shank.