The internal hex wrench features a compact structure, small size, light weight, and high output torque, making it a powerful tool for nut removal and bolt pre-tightening. With torque control within a 3% range, it meets the requirements for high-precision torque values in connection pre-tightening.

Special tools' torque is the product of force and distance. When tightening threaded fasteners such as screws, bolts, and nuts, it is necessary to control the applied torque to ensure that the threads are securely fastened without damaging them due to excessive torque. To extend the lifespan of the internal hex wrench, here are some maintenance tips:

1.After use, wipe off any dirt and debris from the surface and store it in a dry and safe place.

2.For striking tools, avoid continuous striking. After more than ten strikes, take a break and clear any debris stuck to the tool before continuing use.

3.Do not overload wrench-type products, and do not use sleeves or tie other metal rods to extend the lever arm or use hammer blows to tighten fasteners.

4.Sharpen blade-type tools by gently touching the grinding wheel in a water tank, avoiding excessive force or prolonged contact with the grinding wheel.

5.During the actual operation of striking tools, clear the site of debris and oxide corrosion on the working surface to prevent third-party impacts.

6.Before using the internal hex wrench, remove any surface oil and follow the instructions for steel tools.