Milwaukee® Ice Hardened™ Hole Dozer™ Hole Saw Kit, All Purpose Professional, Series: Hole Dozer™, 28 Piece, Specifications: Variable Pitch, 1/2-20, 5/8-18 Thread, 3/8, 7/16 in Hex Shank, 1/4 in Dia x 3-1/2 in L Pilot Drill Size, 1-5/8 in Cutting Depth, 4/5 TPI, For Use With: 49-56-7210, 49-56-7240, 49-56-7250 and 49-56-9100 Quick-Change Arbor, Bi-Metal/HSS