The MILWAUKEE® SDS Plus PLUS-LOK™ 12" Extensions provide increased access in tough to reach areas and around obstructions. The extensions are universal and fit all brands of SDS Plus rotary hammers and accessories including drill bits, chisels, core bits, and anchor installation solutions. The PLUS-LOK™ SDS Plus extension connection mechanism has a small profile to drill deep through holes with drill bits 7/8" and larger. The auto-insert mechanism allows for a tool-free connection and provides ease of use. By increasing accessibility and decreasing the number of drill bits needed to complete a job, the universal SDS Plus extension bars Reach More and maximize productivity.