The MILWAUKEE® MAX-LOK™ SDS MAX Extension provides you with increased access in tough-to-reach areas and around obstructions. The extension is universal, fitting all brands of SDS MAX rotary hammers and accessories including but not limited to drill bits, chisels, core bits, and anchor installation solutions. By increasing accessibility and decreasing the number of drill bits needed to complete a job, the universal SDS MAX extension allows you to Reach More and maximize your productivity.. Universal: SDS MAX Extension fits all SDS MAX Rotary Hammers. Compatible with all SDS MAX Accessories. Delivers increased access in tough to reach areas. Bit Material: Steel. Drill Bit Type: Extension. Drill Bit Type(s) Included: Masonry Bit. Features: No Additional Features. Impact Driver Capability: Standard. Individual/Set: Individual. Material Application: Concrete. Number of Pieces: 1. Number of Pieces: 1 Piece. Pack Size: 1. Shank Style: SDS Max. Tools Product Type: Other. Bit Diameter: 1-1/4 in. Bit Length (in.): 15 in. Drilling Depth (in): 0. Shank Diameter: 45/64 in