THESE BELTS ARE FOR THE SVSII DELUXE (SVSD) AND STANDARD (SVSS) VALVE REFACERS. THESE ARE THE " SPINDLE" BELTS, THE SPINDLE BELTS TURN THE "STONE". 2ea. ARE REQUIRED PER MACHINE.
NOTE: THESE BELTS ARE A "VERY" TIGHT FIT. The belts do need to be stretched in order to fit them on. That is normal.
If you are not SURE what model of valve refacer you have, especially if you are confused over the STANDARD verses DELUXE verses a plain SVS, you can use this article to help you sort it out. CLICK HERE.
If you also need the Chuck Drive Belt you can find that by Clicking Here