HOLE SAW *Sub Brand: Hole Dozer *Diameter: 1-3/8 in. *Material: Bi-Metal *Product Type: Hole Saw *Number in Package: 1 pc. *Usage: Cutting Holes *Quick-Change System: Yes *Arbor Included: No *Shank Diameter: 1/4 in. *Length: 2.18 in. *Compatible Arbors: Arbors with 5/8 in.-18 thread *Discovery ACC, CON, NBR, SUP