Torque wrench when use, should according to the requirements of the fastener torque value to choose the right type, shall not be used beyond, in addition, there are the following considerations:

One, must use it carefully, it is forbidden to knock, vibration, knock against, throwing, and when the hammer is used.

Second, in order to ensure the torque value, the accuracy of the wrench should be regularly check and correction.

Three, this product does not allow to loose fasteners, prevent influence precision value due to overload.

Finally, when found failure torque wrench or numerical inaccuracy, shall be carried out by a special measuring personnel adjustment and maintenance, the verification personnel shall not be taken apart.