Difference between explosion-proof wrench and ordinary wrench

Safety, materials and applicable environment are all different.

Explosion-proof wrench is designed to be used in dangerous environment to prevent explosion caused by sparks or static electricity. Ordinary wrenches have no special safety design. Explosion-proof wrench is made of explosion-proof alloy or material that does not generate sparks, which can prevent sparks from generating in specific environment. Ordinary wrenches are usually made of ordinary alloys or steel. Explosion-proof wrench is suitable for flammable and explosive environment, such as petrochemical industry, coal mine, aerospace and other industries. Ordinary wrenches are suitable for maintenance and assembly work.