The pry bar wrench is forged from medium carbon steel or alloy steel as a whole, and has the characteristics of reasonable design, stable structure, high material density, strong impact resistance, no folding, no bending, high dimensional accuracy, and durability. Large industrial pry bar wrenches are suitable for industries such as petroleum, chemical, metallurgical, power generation, refining, shipbuilding, and petrochemicals. Dumb wrench is a tool used in equipment installation, device and equipment maintenance and repair work. There are two types of pry bar wrenches: metric and imperial.

Material of pry bar wrench: The pry bar wrench is made of 45 # medium carbon steel or 40Cr alloy steel forged and processed as a whole.

Manufacturing standard for pry bar wrench: GB/T4392-1995 (tapping wrench and tapping ring wrench).