Wrench for Striking 46 mm JCB hand tool JCB-79346

Striking box-end wrench 46 mm JCB-79346 by JCB is a 46 mm closed-end hand tool engineered for use where torque must be applied with hammer impact. The tool is shaped to engage hex fasteners securely while allowing controlled striking on the wrench head. It is intended for maintenance and repair tasks on heavy equipment, construction machinery and applications where additional impact force is required to loosen or tighten fasteners.

Advantages

This 46 mm striking box-end wrench is designed for durability and reliable engagement with hex heads to reduce rounding of fasteners during impact use. The closed-end profile provides a secure grip around the nut or bolt head, improving torque transfer when struck with a hammer. Manufactured by JCB, the tool is suitable for demanding onsite and workshop environments and supports repeated impact cycles without compromising fit.

Suitable for

• Heavy equipment maintenance and servicing
• Construction machinery repairs and adjustments
• Field repairs where impact-assisted torque is required
• Outdoor or remote job sites with limited access to powered impact tools

Key specifications

• Wrench type: closed/box-end striking wrench
• Working size: 46 mm across flats
• Material: heat-treated steel suitable for impact use
• Finish: protective coating to resist corrosion in workshop and field conditions
• Designed for use with hammer strikes to apply additional torque

How to use

Select the 46 mm striking box-end wrench and fit the closed end fully over the hex fastener. Ensure the wrench seats squarely on the flats of the fastener without play. Apply steady turning force where possible and, when additional torque is required, deliver controlled hammer impacts to the striking surface of the wrench while maintaining alignment to avoid slipping. After use, inspect the wrench and fastener for damage and clean or lubricate as appropriate for storage.

Usage recommendations

Use protective eyewear and hand protection when performing impact-assisted operations. Avoid striking if the wrench does not fit securely on the fastener. For repeated high-torque tasks, verify that the wrench is free of cracks or deformation before use and follow manufacturer maintenance guidelines for tool life and safety.