A6 KWIK CHANGE CHUCK​ The Starrett A6 Kwik-Change Chuck Hex Shank. The Starrett Kwik-Change Arbor System offers fast, tool-free changes between different sizes and types of hole saws, plus provides a simple method for core ejection and hole enlargement. Kwik-Change is an invaluable addition for any regular hole saw user. Fast core ejection
For use with hole saws up to 152mm diameter