Copper wrench is the most commonly used hand tool in the explosion proof tools,including non sparking striking box end wrench,open end wrench bent,single open end wrench,double end box end wrench,striking box end wrench bent,hex allen key,striking box end wrench convex,striking open end wrench,adjustable wrench,valve square driver,F wrench,combination wrench,double open end wrench,universal wrench,socket wrench,bung wrench,C wrench,hook wrench,ratchet wrench,T wrench and other hundreds of products with thousands of specifications.

The material is copper alloy,beryllium copper or aluminum bronze.Due to the good thermal conductivity of copper and high-quality stainless steel and the characteristics of almost no carbon, the heat generated in a short time is absorbed and conducted when the product is rubbed or impacted by an object.Another reason is that because copper and stainless steel are relatively soft, they have good concessions during friction and impact, and it is not easy to produce tiny metal particles.So we can hardly see the spark, the products achieve the explosion-proof effect.

Due to the softness of the copper wrench, the explosion-proof copper wrench products cannot be used in excess,not to mention the use of sleeves or tying other metal rods to lengthen the arm,further more,it can not be hammered(except for striking wrench) to screw the fasteners.

Non sparking spanners.