Marcrist 330.101.0006 250MM 1/2" BSP (F-M) Diamond Core Extension

DRILLS DEEPER THAN THE CORE REACHES ALONE: Screws in between the adaptor and the core bit to put another 250 mm in the drive line, so thick walls, double skin brickwork and deep concrete stay within reach of the core you own. FEMALE TO MALE 1/2 INCH BSP: The female end screws onto the adaptor or the dust extraction head and the male end takes the core bit, so it drops into a dry core setup you already own with nothing else to buy. HOLLOW BARREL FOR DUST EXTRACTION: The rod is bored right through and works with Marcrist dust extraction, so the waste heads for the vacuum instead of the floor. A TAPER SEAT KEEPS THE PILOT DRILL: An A taper fitting inside the male end holds a taper shank pilot drill, sold separately, so the core still starts on your mark. The hole in the side lets a drift key tap it back out. FITS THE MARCRIST CORE DRILLING SYSTEM: Works with 1/2 inch BSP dry cores such as the DCU650 and DCU750X, the hex 3 jaw chuck and SDS plus adaptors and the dust extraction head. Recommended for installers, building professionals and electricians.