abrasive media breakdown is drastically reduced—even while delivering a high volume of media to the workspace

Can be quickly disassembled for hand cleaning

Up to 5 times longer diaphragm life compared to other air operated diaphragm pumps in its class

Fully Plumbed are ready to go

hand crank retraction

Woodstock Tools 1-1/4" x 3-1/4" OD Rub Collar grinder abrasive media breakdown is drasticallyAll Woodstock Rub Collars are manufactured from solid steel on CNC lathes. We assemble these in the U. S. A. using high quality, maintenance free bearings. These Rub Collars deliver extremely smooth, bump free operation. 3 1 4" Outside Diameter 1 1 4" Bore Maintenance Free Bearings