Flat Striking Wrench 41 mm L‑230 mm Rockforce RF-79141

The Rockforce Flat Striking Wrench 41 mm L‑230 mm RF-79141 is a heavy‑duty hand tool designed for high‑torque applications where impact force is required. The wrench features a 41 mm fixed jaw opening and a 230 mm overall length, providing leverage for loosening and tightening large nuts and bolts. Constructed for durability, the flat striking face at the opposite end accepts hammer blows to deliver additional torque when manual force alone is insufficient.

Advantages

The flat striking wrench combines a robust head design with a reinforced body to withstand repeated impact. Its fixed 41 mm jaw ensures consistent fit on matching fasteners, while the 230 mm length balances torque capability and maneuverability in confined spaces. The striking face is hardened to resist deformation and to transfer hammer energy efficiently into the fastener. The tool is intended for reliable performance during mechanical, construction, and maintenance tasks that demand impact assistance.

Suitable for

• Loosening and tightening large nuts and bolts in automotive and mechanical repairs
• Construction site fastening and dismantling where impact blows are applied
• Industrial maintenance tasks requiring high manual torque and hammer assistance

Key specifications

• Jaw size: 41 mm
• Overall length: 230 mm
• Flat striking face for hammer impact
• Fixed open‑end design
• Material: heat‑treated steel for impact resistance (manufacturer specification)

How to use

Place the 41 mm open end over the nut or bolt head ensuring a full and snug engagement before applying force. For normal tightening or loosening, apply steady manual force to the handle while maintaining alignment with the fastener to avoid rounding. When additional torque is required, use the flat striking face: hold the wrench steady and apply controlled hammer blows to the striking end. Inspect the engagement after each blow and adjust positioning as needed to maintain safe contact.

Usage recommendations

Use appropriate personal protective equipment, including eye protection and gloves, when applying impact blows. Avoid excessive bending or prying with the wrench beyond its intended open‑end use. Regularly inspect the jaw and striking face for wear or deformation; replace the tool if significant damage is observed to maintain safe and effective operation.