PFERD

 Quick Change Flap Wheels and Accessories - Threaded Shank Adapter for Quick-Change Flap Wheels

Quick Change Flap Wheels and Accessories - Threaded Shank Adapter for Quick-Change Flap Wheels

1/4” shank with 1/4-20 female thread.

EDP Shank Diameter Thread Size Overall Length
45299 1/4 1/4-20 1-3/8