Check the listing for details. Core Drill Bit Adapter 1-1/4” - 7 Thread Male to 1/2” Shank Diamond. Condition: New. Listed at 34.75 USD. Description 1x 1-1/4"-7 thread (male) to 1/2" shank Specification For convert 1-1/4"-7 core bit to 1/2 "shank Industrial GradeAdapter only, bit not included Shipping Free USA Shipping w/ tracking Guarantee We provide 14 days exchange or return if our products is not fit in your tool or defect.Please email us for detail. Warning Please follow your tool safety instruction, and wearing safety glasses or protective goggles all the time during operation. Fein® MultiMaster™, Milwaukee®, Ridgid® JobMax™, Craftsman® and Chicago Electric® are registered trademarks of C. & E. Fein GmbH, Milwaukee Electric Tool Corporation, Ridgid, Inc, Sears Brands, LLC and Central Purchasing, Inc. respectively. Bosch®, Dremel® and Skil® are registered trademarks of Robert Bosch Tool Corporation. Rockwell® Sonicrafter®, Worx® and Mastercraft® are registered trademarks of Positec Group Limited, Greapo Power Tools, and Canadian Tire Corp, Ltd. respectively. Froo www.froo.com | Froo Cross Sell, Free Cross Sell, Cross promote, eBay Marketing, eBay listing Apps, eBay Apps, eBay Application