Impact Extension Bar 1" with Hole 250 mm JCB

JCB Impact Extension Bar 1" with Hole 250 mm is a purpose-built extension for 1-inch drive impact tools. It provides an extra 250 mm of reach to access recessed or hard-to-reach fasteners while offering a through hole for secure retaining with a locking pin or detent. Constructed to withstand the high torque and hammering action of impact wrenches, the extension bar is intended for professional use in automotive, industrial and maintenance environments.

Advantages

The extension bar delivers extended reach and improved access to recessed bolts and nuts without requiring additional adapters. Its through hole allows positive retention for safe operation under impact conditions. Made by a recognized tool brand, the construction is robust to resist deformation and wear during repeated impact use. The long length reduces the need to reposition bulky equipment or disassemble surrounding components to reach fasteners.

Suitable for

• Automotive repair tasks such as suspension, exhaust and engine work where fasteners are recessed
• Industrial maintenance and machinery servicing with deep-set bolts and studs
• Construction and fabrication jobs that require extended torque transmission from a 1" impact wrench
• Workshops and service centers needing durable impact-rated extensions for frequent use

When it may not be suitable

This extension bar is designed specifically for 1-inch drive impact tools and may not fit smaller or larger drive sizes without an adapter. It is intended for use with impact-rated sockets and tools; using it with non-impact hand tools can increase the risk of bending or damage. For extremely confined spaces shorter extensions or dedicated universal joints may be more appropriate.

Key specifications

• Drive size: 1-inch
• Overall length: 250 mm
• Retention: through hole for locking pin or detent
• Intended use: impact-rated extension for use with impact wrenches and ratchet systems
• Construction: durable material and heat treatment suitable for impact applications

How to use

Select a matching 1" impact socket and attach it to the extension bar. Insert the extension onto the impact wrench square drive and align the through hole with the tool’s retention mechanism; secure with an appropriate locking pin or detent to prevent accidental disengagement. Position the socket over the fastener, apply steady controlled impact torque and avoid side loading. After use, inspect the extension and socket for wear or damage and store in a dry place.

What to consider before purchase

• Verify compatibility with your impact wrench drive size (1" drive)
• Ensure you have impact-rated sockets that match the extension to avoid mismatched components
• Consider the 250 mm length to confirm it provides the required reach without creating unsafe leverage
• Check that your application allows for a through-hole retention method (pin or detent) for safety

Usage recommendations

Use the extension only with impact-rated sockets and tools, secure the through hole with a suitable retaining pin or detent before applying torque, and avoid high-angle side loading. Regularly inspect for wear and replace if deformation, cracks, or excessive wear are visible to maintain safe operation.