Impact Deep Socket 3/4" 55 mm (12-point) — JCB

JCB Impact Deep Socket 3/4" 55 mm (12-point) is an impact-rated deep socket designed for use with 3/4-inch drives and impact wrenches. With a 55 mm overall length and a 12-point internal profile, it provides access to recessed nuts and bolts while permitting positive torque transfer from pneumatic or electric impact tools. The tool is intended for professional applications in automotive repair, heavy equipment maintenance, and industrial service where a deeper reach and compatibility with impact tools are required.

Advantages

The 12-point configuration allows easy alignment with fasteners in tight or awkward positions and reduces the need for perfect angling before engagement. The deep socket length enables reach to recessed or shoulder-mounted fasteners that standard sockets cannot access. Constructed and finished for impact use, it resists deformation under repeated torque pulses from impact wrenches and is suitable for high-torque applications on steel fasteners.

Suitable for

• Removal and installation of recessed nuts and bolts on engines and gearboxes
• Maintenance of construction and agricultural machinery with deep-set fasteners
• Workshop and industrial use with 3/4" drive impact wrenches and rattle guns
• Heavy-duty vehicle repair where high torque and deep access are required

Key specifications

• Drive size: 3/4" (0.75 inch)
• Socket length: 55 mm
• Internal profile: 12-point
• Intended use: impact-rated (for use with impact wrenches and pneumatic tools)
• Compatible fastener type: hexagonal nuts and bolts

How to use

Select the correct 3/4" drive impact wrench and attach the JCB 55 mm deep socket firmly to the tool square drive. Ensure the socket fully seats on the fastener head before applying torque. Use controlled bursts with an impact wrench to prevent over-torquing and follow the fastener manufacturer’s torque specifications when final tightening with a torque wrench if required. Inspect the socket for wear or rounding before each use and replace it if deformation is observed.

Usage recommendations

Use only with impact-rated extensions and accessories; avoid using the socket with non-impact hand tools for tasks where precision torque is required for final tightening. Store the socket in a dry toolbox and clean any debris from the internal profile after use to maintain reliable engagement and prolong service life.