Home Products Power Tool Accessories Hole Saws Hole Saw Arbors Adapter Nut 1/2-20 Internal Shank 5/8-18 External Length Adapter Nut 1/2-20 Internal Shank 5/8-18 External Length (05310) Bi-metal hole saw adapter nut for changing thread on all brands of hole saws Adapts 5/8-Inch -18 threads to 1/2-Inch -20 threads Includes spacer ring Find a Retailer Find on Amazon
