Item Description:
- The arbor adapter can be used on any small hole saw arbor to adapt to use hole saws up to 1-1/2 in.
- Use with hole saw arbor washer (included) if you are using a 1-1/2 " hole saw.
- For use with hole saws up to 1-1/2 in.
- Inside threads: 1/2" - 20, Outside Threads: 5/8" - 18