Tekton SHA99004 Universal Joint Set 3-piece

Product Description

The TEKTON SHA99004 is a 3-piece universal joint set covering the three most common drive sizes: 1/4 inch, 3/8 inch, and 1/2 inch. Universal joints, also called flex sockets or swivel adapters, connect a ratchet or extension bar to a socket and allow off-axis driving in tight or angled spaces. This set gives a technician the flexibility to work across a full range of hand-tool drive sizes without swapping individual adapters. HVAC techs, plumbers, electricians, and general service professionals reach for universal joints when fastener access is restricted by sheet metal, pipe runs, or structural framing.

This set is suited to residential and light commercial service work where three drive sizes are commonly encountered in a single job. The 1/4 inch drive joint handles small fasteners and tight-clearance work. The 3/8 inch drive is the workhorse for mid-range fasteners on equipment panels, junction boxes, and mechanical assemblies. The 1/2 inch drive joint covers heavy-duty fasteners on structural brackets, large equipment mounts, and flanged connections. Keeping all three sizes in a service bag eliminates the need to source individual adapters on the job.

Key Features

• Three-piece set covers 1/4 inch, 3/8 inch, and 1/2 inch drive sizes in one package
• Universal joint design allows off-angle socket driving in confined or obstructed spaces
• Compatible with standard ratchets, extensions, and sockets across all three drive sizes
• Compact set package weighs 0.6 pounds, practical for a field service bag or toolbox
• Single-unit packaging keeps the set together and ready for deployment

Compatibility

Designed for use with standard 1/4 inch, 3/8 inch, and 1/2 inch drive ratchets, extensions, and sockets following ANSI drive-square conventions.

Installation Notes

Universal joints are hand-tool accessories installed and removed without additional tooling. Always verify the drive size matches the ratchet and socket before applying torque to avoid damaging the joint or the fastener. When working on energized electrical panels or live gas equipment, follow NFPA 70E or IFGC shutdown and lockout-tagout procedures before using any hand tool in the work area. Avoid using universal joints as a substitute for a proper swivel socket under high-torque applications, as excessive angle and force can shorten joint life.