Welding hammers

Welder's hammer

— a tool used in welding — mainly to remove scale and slag ("charge") formed in the process, and sometimes also to check the quality of the weld. In professional jargon, such a hammer is called a "cleaver" or "slag breaker". It usually has a double-sided head, one of the heads is made in the form of a chisel, and the second can have a different design: a second chisel perpendicular or parallel to the first, a pointed sting for cleaning hard-to-reach places, or even a curved Z-shaped cutting edge. Also note that some slag hammers are equipped with handles in the form of a twisted spring: such a spring dampens the recoil from the blow, and also dissipates heat if the hammer is used directly during the welding process.