To make one, use a hacksaw or band saw to cut away one side of a 6-in.-long piece of 2" PVC pipe, leaving 2 in. at the bottom ...

The 1,925-lb. drop hammer attachment delivers 3,600 ft.-lbs. of impact energy combined with a fast cycle time of 20 bpm. 38-in. maximum stroke and 1,140-lb. hammer weight Powered by a drive motor ...