Our replacement parts are especially designed to work with our very own BAR Co's Vac Sander. If you've misplaced your base attachment knob, no worries! We'll ship out your replacement quickly.
Each base attachment knob is a 3/4" Knurled Knob; 10-24 x 3/4" Steel, Zinc Plated RED Polypropylene (PP).
If you should need assistance with your sander or its parts, please contact customer service by dialing 1(855) 227-2276.