The following are just a few of the commonly used hand tools and power tools, and the correct use and safety precautions are introduced:
1. Metalworking hand hacksaw
Use suitable saw blades for work, such as sawing 14 teeth per tang for real or thick soft metal; 18 teeth per tool for tool steel, iron pipe, hard metal, etc.; and 24 teeth per 则 for metal plates and metals Sawing of tubes and thin iron bars. And push the saw forward, gently pull it back when pulling back.
Wrench
1 The appropriate size of the wrench should be selected according to the nature of the work.
2 When using the adjustable wrench, apply force to the fixed side, and never use force on the movable side.
3 If the wrench opening is worn or slips when used, it can no longer be used to avoid slipping and hurting the hand.
4 Unavailable wrenches can be used as a shovel.