This is a standard score holder for most applications. We also sell all repair parts as well as blades and other accessories. Call with any questions1/2" Wide Standard Score HolderSKU: 53502a3809fbe0.89765066$130.00PriceAir Coupling*SelectBlade Bore*SelectQuantity*Add to CartDetailsThese come complete with a bearing, axle, air hose, and your choice of air fittings and blade. Just screw the 1/8"ntp fitting into your air bar.