Check the listing for details. Black & Decker Valve Grinder Chuck Belt Set. Condition: New. Listed at 27.54 USD. New 2 piece Belt Set for the Chuck on a Black & Decker Model NW, NWA, & NWB Valve Grinders. We will do our best to help you in any way we can. Cylinder Block Reconditioning. Construction Equip Manuals.