Pferd 45316 Quick Change Flap Wheel, 1 in dia, 1 in W Face, 40 grit, 1/4-20 Thread, Coarse Grade, Aluminum Oxide Abrasive

With mounted flap wheels, coated abrasive flaps are arranged radially around the core in a fan-like structure. The flexible flaps perfectly adapt to surface contours. The abrasive grain is embedded in the sturdy, flexible cloth backing material with a resinoid bond. In ISO 3919, mounted flap wheels are designated as "flap wheels with shaft." For universal applications from coarse to fine grinding.