Make dry core holes in concrete, brick, block and masonry walls with this diamond core drill bit. The 2-1/2-inch bit uses 10mm turbo diamond segments for faster cutting speed and longer service life than standard segments, with reduced vibration for smoother, more stable drilling. Dry drilling requires no water, making the bit suited to indoor jobs, renovation and on-site installation. Two adapters expand the drill and grinder setup: a 3/8-inch hex shank adapter and a 5/8-inch-11 thread male-to-SDS Plus shank adapter for SDS Plus drills. The universal 5/8-inch-11 thread fits most angle grinders and core drilling machines. Its total length is 11 inches, with a working depth up to 9.5 inches (241mm), and it suits electrical boxes, plumbing pipes, vent holes and wall openings.
Turbo diamond segments: The 10mm segments deliver faster cutting speed and longer service life than standard segments, with reduced vibration for smoother, more stable drilling
Dry drilling method: Designed for concrete, brick, block and masonry walls without water, including indoor jobs, renovation and on-site installation
Adapter pair: Includes a 3/8-inch hex shank adapter and a 5/8-inch-11 thread male-to-SDS Plus shank adapter for SDS Plus drills
Universal thread: The 5/8-inch-11 thread fits most angle grinders and core drilling machines for the listed drill and grinder setups
Extended reach: Provides a working depth up to 9.5 inches (241mm) with an 11-inch (280mm) total length for thick concrete walls and masonry blocks
Opening applications: Suited to electrical boxes, plumbing pipes, vent holes and wall openings, with a heavy-duty steel body and balanced design for safer dry drilling
