Description This arbor is designed for use with hole saws ranging from 32mm to 152mm in diameter, suitable for cutting various materials. It features a quick-change mechanism that allows for easy and tool-free swapping of hole saws, saving time during projects. The arbor is equipped with a 6.5mm (1/4 inch) pilot drill, which is longer for compatibility with fast-cutting hole saws. It is compatible with hole saws up to 210mm in diameter and fits chucks with a capacity of up to 9.5mm. The shank size is 8.75mm hex, ensuring a secure fit in the chuck. Specifications Suitable for hole saws from 32mm to 152mm (up to 210mm diameter) Shank size: 8.75mm hex Capable of fitting chucks with a maximum capacity of 9.5mm Includes a 6.5mm (1/4 inch) pilot drill with an extended length for fast-cutting hole saws Compatibility and Accessories Compatible with Starrett fast-cutting hole saws from 1.1/4 inch to 6 inches (32mm to 152mm) Includes a 1/4 inch pilot drill for use with compatible hole saws