Gearwrench® 4Pc 1 4, 3 8 & 1 2 in. Drive 90 Tooth Flex Head Teardrop Ratchet Set Construction The lockable flip up lid uses Size:Off Set Ring Spanner 1 2 x 7 16in The lockable flip up lid uses twin gas struts for controlled and smooth opening and closing action Slip Buckle Clips ensure you can fit your knee pads on and off quickly and keeps pads firmly in position while you kneel crawl and walk The 90 tooth design exceeds ASME torque performance requirements Meets or exceeds ASME specifications6 Position flexible head provides access for hard to reach fastenersPrecision engineered high strength pawl for increased durabilityEnclosed head design for extreme resistance to dirt infiltrationHighly visible on off markings on the head90 tooth gear delivers a 4 swing arc to turn a fastener in tight confinesTeardrop