Drilling companies commonly test hammers and pipes in their shops before moving putting them into production. Typical hydraulic units that are used in shops handle a limited OD range and must be loaded by sliding the pipe in horizontally. Scorpion Oil Tools manufactures shop units that can produce 150,000 ft-lbs of torque and can handle ODs of 2-3/8" to 30", all at a fraction of the cost. Furthermore, the Scorpion Service Center (SSC) units can be loaded from the top and down. This makes it easier for shop workers to maneuver the pipes because they can load them in using a forklift or overhead winch or crane.