SDS Plus Core Drill Bit Adapter Set

This adapter set includes two precision-machined metal adapters: one with 1-1/4"-7 UNC male thread and one with 5/8"-11 male thread, both terminating in SDS Plus shanks. Each adapter is made from hardened steel with electrophoretic coating for enhanced corrosion and wear resistance. Total weight approximately 320 g; individual adapters measure approx. 85 mm (UNC) and 75 mm (5/8") in length. Designed exclusively for rotary drilling mode — not compatible with hammer or impact function. Intended for use with SDS Plus rotary hammers and core drill bits featuring matching threaded arbors. The adapters enable secure, wobble-free coupling between non-SDS core bits and SDS Plus tools, supporting consistent concentricity and torque transfer during concrete, masonry or stone coring. They eliminate the need for dedicated SDS Plus core bits — expanding tool compatibility without sacrificing stability. Ideal for contractors, electricians and plumbers performing conduit, pipe or duct penetrations in reinforced concrete walls, floors or slabs. Also suitable for renovation projects where existing core bits must be reused across multiple tool platforms.