/ Saws / PTA & Hand Saw Blades / Hole Saw Arbors / Ulti-Mate / A3-3 We are sorry but the item (A3-3 ULTI-MATE Hole Saw Adaptors, for Hole Saws 9/16'' - 1-3/16'') you are looking for is no longer available Please reach out to us at custsupport@starrett.com or call at 978-249-3551 for assistance. There is a newer version of this product available A6-2 Kwik Change Arbor for 14-30mm Hole Saws Kwik Change Arbor for 9/16" - 1-3/16" (14-30mm) Hole Saws.