To enable accurate and easy start drilling, DURO offer both an a-taper pilot drill and this guide rod. It's a tapered guide rod, for initial core drill hole guidance. Fits directly into diamond core adaptors and extension piece.A range of PLUS specification accessories made from premium grade tool steels for maximum strength and durability. DURO Plus accessories are made in the UK. DURO offer dry core drill accessories in DURO PLUS specifications. Power tool adaptors such as the DP-CA (3 jaw chuck) and the DP-SA (sds-plus) fit directly to the core drill itself. If the user needs to extend the reach of the core drill – then attach either a DP-EXT3 or EXT-M extension rod. Simply screw the power tool adaptor into the extension and then into the core drill.Features:For initial core drill hole guidanceEnsures core drills run straight and trueFits directly into diamond core adaptors and extension pieceOther accessories also available