Proto 3G-OTH-267239 — Technical Specifications

The PROTO Master Set (MPN JCS-MAS-4A) is a 90-piece tool set with a 3/4-inch socket drive size, offering both Metric and SAE configurations. It includes (22) sockets, (7) flex combo wrenches, (6) retaining ring pliers, and (2) screw starters. This set is designed for industrial maintenance and repair applications requiring a comprehensive range of hand tools.