Milwaukee SDS Plus PLUS-LOK Extensions provide 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. Due to their small profile design, the PLUS-LOK extensions are ideal for drilling deep through holes with drill bits 7/8 in. and larger. Additionally, the auto-insert mechanism allows for tool free connection and ease of use. By increasing accessibility and decreasing the number of drill bits needed to complete a job, the universal SDS Plus PLUS-LOK Extensions allow users to Reach More and maximize productivity.