Punch holes quicker at construction sites with this hydraulic driver knockout punch and die set. The Slug Buster is compact in design and quick to operate in field use. It makes punches up to 10 times faster than using the wrench method. It can also be used to drive a cable cutter head through conduit walls. The kit comes with the driver, hand pump, punches and dies, draw studs, adapter and spacers and a three-foot hose.