Black & Decker™ Gear Case Assembly is designed for type 1 D28110, D28110K, D28111-B3, D28111S-B3, D28111SK-B3 4 1/2" small angle grinders, type 2 D28111-B3 4 1/2" small angle grinder, type 1 DC411B 18 V, DC411KA 18 V, DC415KL 36 V cut-off tools and type 1 DC413KL 28 V cordless cut-off kit.