The Bosch EXPERT Power Change Plus Arbor and HSS-CO Pilot Drill is a professional-grade hole saw arbor system designed for rapid, tool-free accessory changes during drilling operations. Changing hole saws on a conventional arbor is a time-consuming, fiddly process — particularly when you’re working through multiple sizes on a busy site. The EXPERT Power Change Plus addresses this with a one-click keyless mechanism that requires no screws or bolts, allowing you to swap hole saws in and out in seconds. Bosch claims the system is up to 5x faster than a standard adapter. Despite the speed of the changeover, the connection itself is firm and precise. A reinforced shank transition and close-fitting pilot drill reduce play compared to conventional systems, while the rounded shank and special reinforcing process eliminate stress concentrators that can cause premature breakage. The pilot drill is also engineered to push the cut plug out quickly and cleanly once a hole is complete. Compatible with hole saws from 14mm to 210mm, this arbor suits the full range of Bosch Power Change Plus hole saws, making it a versatile addition to the toolkit of electricians, plumbers, and carpenters working across varied materials and bore sizes. Features and Benefits: • One-click keyless system — swap hole saws in seconds with no screws or bolts required • Up to 5x faster accessory changes than a standard adapter • Reinforced shank transition reduces stress and extends shank life • Close-fitting pilot drill minimises play for greater accuracy • Pilot drill doubles as a plug ejector for fast, smooth plug removal • Wide compatibility — accepts hole saws from 14mm to 210mm • Hexagon shank for secure chuck engagement Specifications: Diameter: 7.15mm Total length: 65mm Working length: 25mm Shank shape: Hexagon Net weight: 0.200kg