Socket bit 3/4" 27 mm (6-point) JCB 3/4" 27mm impact socket bit

Impact socket bit by JCB with a 3/4" drive and a 27 mm 6-point head, designed for heavy-duty fastening and loosening with impact wrenches and torque tools. The 6-point profile provides full face engagement on hex fasteners, reducing the risk of rounding and concentrating torque efficiently on the flats. Built for repeated use in demanding environments, this socket bit is suitable where high torque transfer and robust construction are required.

Advantages

The 3/4" drive and 27 mm 6-point geometry deliver reliable torque transmission and positive engagement with hex bolts and nuts. Manufactured by JCB for impact applications, the bit resists deformation under shock loads and minimizes slippage during use. Its design supports consistent contact with fastener faces, improving safety and reducing tool wear in professional automotive, construction, and industrial maintenance scenarios.

Suitable for

• Automotive wheel and suspension fastening where high torque is needed
• Construction equipment maintenance and assembly
• Industrial machinery service and repair
• Workshops using pneumatic or electric impact wrenches

Key specifications

• Drive size: 3/4"
• Head size: 27 mm
• Profile: 6-point (hex)
• Intended use: impact applications with pneumatic or electric torque tools
• Material and finish: impact-rated alloy steel (manufacturer specification)

How to use

Select the JCB 3/4" 27 mm 6-point impact socket bit and attach it securely to a compatible 3/4" impact wrench or torque tool. Ensure the fastener and socket faces are clean and correctly aligned before applying torque. Use appropriate torque settings on power tools and apply steady, controlled bursts with an impact wrench to avoid over-tightening. Inspect the socket regularly for signs of wear or damage and replace if deformation or cracking appears.

Usage recommendations

Use the socket bit only with tools rated for impact use; avoid hand-only ratchet use if the bit is specifically heat-treated or designed for pneumatic impact tools. Store the bit in a dry toolbox to prevent corrosion and check compatibility with fastener material to prevent galling or excessive wear.