Impact Socket 3/4" 71 mm (12-point) JCB

JCB impact socket 3/4" 71 mm (12-point) is a heavy-duty socket designed for use with impact wrenches and torque tools where a 71 mm, 12-point engagement is required. Manufactured for repeated impact use, this socket provides a precise 12-point fit that helps distribute torque across flats of nuts and bolts, reducing the risk of rounding fasteners under high torque. It is intended for demanding environments such as automotive repair, agricultural machinery maintenance and industrial workshops where robust impact-rated tooling is necessary.

Advantages

The socket’s 12-point geometry offers accurate placement on hexagonal fasteners and allows engagement at smaller swing angles compared with 6-point designs. Constructed from impact-grade steel and finished to resist corrosion, this tool withstands repeated shock loading from impact guns. Its 3/4" drive interface ensures compatibility with standard impact wrenches and breaker bars used in heavy maintenance tasks. The size precision and durable construction contribute to longer service life and consistent performance under high torque conditions.

Suitable for

• Automotive repair and wheel nut removal on heavy vehicles
• Agricultural machinery maintenance and assembly
• Industrial maintenance, plant and equipment servicing
• Construction machinery and heavy equipment fastener work

Key specifications

• Socket size: 71 mm across flats (12-point profile)
• Drive size: 3/4" drive compatible with impact tools
• Profile type: 12-point for improved engagement and angle access
• Material: impact-grade steel designed for shock loading
• Finish: corrosion resistant surface treatment

How to use

Select the 71 mm 12-point socket and attach it securely to a compatible 3/4" impact wrench or torque tool. Ensure the socket is fully seated on the fastener before applying torque. When using an impact wrench, start at low speed to verify correct engagement, then apply controlled impacts until the fastener is loosened or tightened to the required specification. For final torque accuracy, use a calibrated torque wrench appropriate for the required torque value and procedure.

Usage recommendations

Use appropriate personal protective equipment and follow manufacturer guidelines for both the impact tool and fastener torque limits. Inspect the socket regularly for cracks, rounding or excessive wear; replace if damage is found. Avoid using cheater bars or excessive leverage on impact sockets to prevent tool or fastener failure.