Socket bit 1/2" 18 mm (6-point) JCB JCB-44518

1/2" 18 mm 6-point impact socket by JCB (model JCB-44518) is a heavy-duty socket designed for use with 1/2-inch drive impact wrenches and breaker bars. Intended for impact applications, the socket provides a precise 6-point engagement with hex fasteners to reduce rounding and ensure effective torque transfer. Built for automotive, industrial maintenance and repair tasks, it combines a compact length and a common 18 mm size to fit into tight spaces while working on a wide range of bolts and nuts.

Advantages

The socket is constructed to withstand repeated impact loading, offering durability and reliable performance during high-torque operations. Its 6-point profile delivers secure contact with fastener faces to minimize slipping and rounding. The 1/2-inch drive interface provides compatibility with standard impact wrenches and breaker bars used in professional workshops. The compact design aids accessibility in confined engine bays and machinery assemblies, while the common 18 mm size covers many standard fastening applications.

Suitable for

• Automotive repair and tyre service
• Industrial maintenance and machinery servicing
• Construction equipment assembly and disassembly
• General workshop fastening and loosening tasks

Key specifications

• Drive size: 1/2 inch
• Socket size: 18 mm
• Profile: 6-point (hex)
• Designed for impact use
• Compact/standard length suitable for confined spaces

How to use

Select the correct 18 mm socket for the fastener, attach it securely to a 1/2-inch drive impact wrench or breaker bar, and position the socket squarely onto the fastener head before applying torque. When using an impact wrench, apply short, controlled bursts and allow the tool to run as necessary to achieve the desired torque. When using manual tools, apply steady, even force. Inspect the socket regularly for cracks, deformation, or wear and replace if any damage is detected.

Usage recommendations

Use the socket exclusively with tools and fasteners rated for impact duty and within the torque limits of your equipment. Avoid using damaged or worn sockets and keep the socket clean and lightly oiled to prevent corrosion. For critical torque settings, use a calibrated torque wrench after initial tightening with an impact tool.