3/8 hex shank. 1/2 - 20 thread. Standard pilot MLW49-56-8010. For hole saws 9/16 to 1-3/16 diameter This Milwaukee Hole Saw Arbor has a 3/8 hex shank for greater gripping capability in the chuck. It can be used in 3/8 capacity drills and larger. The arbor has a 1/2-20 thread and can be used on hole saws from 9/16 through 1-3/16. It can be used with 49-56-8010 pilot bit which is supplied with this Arbor for use on wood and metal. One arbor and pilot per package.
