ALPHA CORE BIT EXTENDERS
Alpha® now offers a Core Bit Extender which allows you to drill hollow concrete blocks from one side for both walls. The Extender ca n be used on hammer drills and rotary hammers. The Extender, with 5/8”-11 female thread, is available with an SDS Plus or ½” Hex Shank and comes in lengths of 6” or 10”. A pilot carbide drill bit guides to the right spot without slipping on the surface.