BSRTTOOl 2Pcs Arbor Adapter 3/8\ Round Shank to 5/8\-11 Threaded for Backing Pad and Electric Drill, Core Drill Bit Adapter
- Shank diameter 8MM long 27mm, 5/8-11 thread, total length 47mm.
- Connects to core bits with 5/8" 11 threaded female arbor, and changes to connector to 3/8" Round.
- Adapter for Drilling and Grinding Concrete, Glass, Granite, Stones.