The costs and hazards associated with standard concrete demolition methods are said to be substantially reduced by a relatively new technique that splits concrete into manageable chunks. The key to the technique is a hand-held splitting machine that operates on hydraulic pressure provided by a small motor. The splitting end of the device is a steel wedge positioned between two hard metal shims called feathers. Appropriately sized holes- ranging from 1 and three-sixteenths to 1 and five-eighths inches in diameter as required- are first drilled into the concrete. The wedge is inserted into the first hole. Hydraulic pressure is activated by means of a control switch. The wedge then turns against the two feathers, exerting several hundred tons of horizontal thrust against the feathers, which expand and force the concrete to split. The pneumatic drilling and hydraulic splitting operations can ordinarily be handled by one man. The muscle work traditionally associated with jackhammer demolition is eliminated because the splitting force is delivered horizontally against the faces of the drilled hole by the machine's wedge. Drilling should take 2 minutes per hole, then the splitting machine does it job in 1 minute.