STARRETT ARBOR for 32-210mm 7/16 Hex Drive Suit 1/2″ Chuck

Hole Saw arbor supplied with 6.35mm (1/4) pilot drill. Shank size 11mm (7/16). Screw thread 5/8?18. Screw thread 5/818. QuickHitch arbors feature two locating pins inserted into the hole saw cap to prevent the hole saw overtightening on the screw thread. This allows easy and instant hole saw changes, without tools and without removing the arbor from the chuck. For use with hole saws ranging from 32210mm Permits instant change of hole saws without tools or removing the arbor from the chuck