Explosion proof impact wrenches are made of aluminum bronze alloy and beryllium bronze alloy as raw materials, processed and produced through multiple processes. The surface treatment of the product has various forms for customers to choose from. The surface treatment of explosion-proof tool products includes natural color, electrostatic spraying, etc. After processing, the tensile strength of the beryllium bronze material impact wrench can reach over 35 degrees, and this material product is both explosion-proof and anti magnetic. Aluminum bronze alloy products can reach temperatures above 25 degrees, and can meet the different needs of customers for tapping wrench products.