The high-powered action of the St. Louis Pneumatic Heavy Duty Medium Barrel Hammer, No. SLP-5300K, can be used to cut bolts and clamps as well as truck body work and other general-purpose applications. This tool features a coaxial regulator for power control and includes a one spring-type chisel retainer. This hammer delivers 3,000 blows per minute and accepts .401 shank chisels. This tool also includes one SLP-9110, Universal Air Hammer Safety Retainer. It is made in the U.S.A.