Loosens hydraulic fittings on tractors, forklifts & heavy equipment hammering with non-turning punchUses the force and vibration of an air hammerFits into small spaces between hydraulic linesAllows safe and preciseReaches difficult line nuts with offset punchCompact design fits where other wrenches won’tBuilt to precise ISO 1174-2 DIN tolerancesInterlocking design keeps punch from slipping off crows foot 30% more steel, 30% stronger