Our SDS PLUS® PLUS-LOK™ extensions provide you with increased access in tough to reach areas and around obstructions. The extensions are universal, fitting all brands of SDS PLUS® rotary hammers and accessories including but not limited to drill bits, chisels, core bits and anchor installation solutions. The PLUS-LOK™ SDS PLUS® extension connection mechanism has a small profile, allowing you to drill deep through holes with drill bits 7/8 in and larger. The auto insert mechanism allows you to perform a tool-free connection and provides you with ease of use. By increasing accessibility and decreasing the number of drill bits needed to complete a job, the universal SDS PLUS® extension bars allow you to reach more and maximize your productivity. Milwaukee® PLUS-LOK™ Bit Extension, For Use With: SDS Plus® Rotary Hammers, Drill Bits, Chisels and Core Bits, Specifications: 22 mm Dia x 18 in L Bit, 25/64 in Dia Shank, Carbide