Effortlessly drill through tough materials with the Bosch Professional Power Change Plus Hole Saw System Adapter 11mm. Includes a TCT-Drill 8.5x105mm for added convenience and versatility. The Power Change Plus system allows for quick and easy hole saw changes without the need for additional tools. Designed for use with Bosch hole saws and other major brands. Perfect for professional tradespeople and DIY enthusiasts alike. Up to 5 times faster than a standard adapter. One-click system, no need for extra tools. Reinforced shank transition for longer shank life. Designed for fast and easy plug removal. Suitable for Bosch progressor, EXPERT Tough Material, EXPERT Construction Material, EXPERT Sheet Metal and Diamond holesaw. Also standard holesaws with adapter nuts. Diameter mm: 8.7