Bosch EXPERT Power Change Plus Arbor 11 mm, TCT Pilot Drill Bit 8.5 x 105 mm

Up to 5x 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