For use with Lenox bimetal hole saws. Arbor allows you to replace the pilot bits through the use of a hex key and a set screw. No. 1779802: Shank Diameter: Hex, Hole Size: 1-1/4 In. To 6 In., Pkg Qty: 1, Package Type: Card No. 1779803: Shank Diameter: Round, Hole Size: 9/16 In. to 1-3/16 In., Pkg Qty: 1, Package Type: Card No. 1779806: Shank Diameter: 3/8 In. Hex, Hole Size: 1-1/2 In. to 6 In., Pkg Qty: 1, Package Type: Card
