Milwaukee  Hole Saw Arbor  3/8 Shank Diame *Diameter: 3/8 in. *Material: Hardened Steel *Product Type: Hole Saw Arbor *Number in Package: 2 pc. *Shank Diameter: 3/8 in. *Length: 1-5/8 in. *Arbor Included: Yes *Fits all hole saws 1-1/4 in. and larger* Fits all drill chucks 3/8 in. and larger* Clamshell