LENOX Tools 1852048 Snap-Back Arbor Extension, 12-Inch 12, snap-back, arbor extension, quick change for faster & easier to engage/disengage hole saw Adds Extra shine to your product Manufactured in China Quick Change: Faster and easier to engage/disengage hole saw Prevents Threads from Stripping: Drives off pins, not threads No Tools Needed: Prevents hole saw from locking on arbor No Adaptor Required: Arbor threads directly into all hole saws Easier Plug Removal