9-Piece Set of Hexagonal Wrench Hardware Tools

The precautions when using an Allen wrench include the following:
Choose the appropriate size: Ensure to use an Allen wrench that matches the screw, avoiding being too large or too small to avoid damaging the screw or wrench.
Moderate force application: Do not apply excessive force to avoid damaging screws or wrenches. Internal hexagon bolts can withstand a certain amount of twisting force under normal circumstances, so it is necessary to control the strength and avoid excessive force when using them.
Maintain verticality: Try to keep the wrench perpendicular to the screw to avoid slipping and causing damage.
Avoid mixing: Do not mix different specifications of hex wrenches to avoid damage.
Avoid hitting: Do not use a steel hammer to hit the hexagonal wrench, do not apply impact loads to the wrench, and do not use the wrench to hit hard objects.
Avoid extending the sleeve extension arm: Do not add a sleeve extension arm to the end of the hex wrench