Black & Decker™ O-Ring is designed for routers, hp routers, 120 V routers, 120 V motor routers, DeWalt® routers, 1 1/2" hp router, 18 V cordless reciprocating saw. Stapler, 7", 9" and 7"/9" large angle grinders, 7"/9" large angle sander, 12" cut off machines, chop saw, nailer, staplers, 28 V, 18 V and 20 V reciprocating saw, router base assembly and 20 V max li-ion reciprocating saw.