Greenlee 645-011 Small Arbor for 5/8" - 2-1/4" Kwik Change Carbide-Tipped Hole Cutter
Quick Change Hole Saw Arbor, Shank Size 3/8 In., Shank Shape Quick Change Hex, Fits Hole Saw Dia. 5/8 In. to 2-1/2 In., Replacement Pilot Drill No. Mfr. No. 645-001, Material Cobalt Steel, Pilot Drill Size 5/8 In. dia. x 2-1/4 In. L, Overall Length 3-29/32 In., For Use With Carbide Cutters, Includes Pilot Drill Bit