For mounting Joint & Crack Cleaning Wheels onto a 20mm arbor
For use on CNC/milling/automatic machine, corded/cordless hand drill, die grinder, right angle die grinder, straight grinder, bench and pedestal grinders.
For adapting a 1 in arbor hole to a 20 mm arbor hole
Specifications: Plastic Adapter 1" To 20mm Arbor Hole