Milwaukee® External Retaining Ring is designed for cordless Sawzall®, Sawzall®, saws, rotary hammers, Sawzall® plus Sawzall® plus, sanders, super Sawzall® with quik-lok blade clamp, worm drive circular saws, stroke Sawzall®, V28 Sawzall® reciprocating saw, Sawzall® reciprocating saws orbital Sawzall® reciprocating saw, Sawzall® plus, TSC Sawzall® with quik-lok blade clamp, trigger speed control Sawzall®, super Sawzall® with quik-lok blade clamp, super Sawzall® and super Sawzall®.