Diablo DMAPLCC1930 13" SDS Plus Core Bit Extension exp Bosch Starlock® oscillating multi tool accessories BP14070L Bosch Starlock® oscillating multi tool accessories deliver a three dimensional fit designed to provide a completely integrated system between multi tool and accessory Single flute straight bits are designed for high production work with maximum chip clearance for fast feed rates Diablo DMAPLCC1930 13" SDS Plus Core Bit Extension Diablo’s SDS Plus core bit extensions attach to thin wall carbide tipped core bits to provide one of the fastest and longest lasting coring solutions on the market for concrete applications