Abstract: A handheld punch tool includes a housing having a handle, a battery receptacle, and a gearcase coupled to the handle opposite the battery receptacle. A cutting head is coupled to the gearcase, a drive unit is disposed within the housing, and a drive train is coupled to the drive unit. The drive train includes a transmission for providing torque to the drive unit, and a reciprocating mechanism coupled to the transmission for reciprocally driving a punch. The handheld punch tool further includes a die assembly having a die holder and a die. A die holder lock is coupled to the housing to lock the die holder thereto, and includes a plunger base coupled to the gearcase, a plunger for engaging the die holder, a fastener threaded to the plunger base, and a biasing element between the fastener and the plunger for preloading the plunger against the die holder.

Abstract: An impact power tool including a housing, a motor supported by the housing, a spindle coupled to the motor for receiving torque from the motor to cause the spindle to rotate, and a reciprocating impact mechanism operable to create a variable pressure air spring within the spindle. The impact mechanism includes a striker received within the spindle that reciprocates along a reciprocation axis in response to the variable pressure air spring, a piston that reciprocates along the reciprocation axis to induce the variable pressure air spring, and a crankshaft configured to convert continuous rotational motion from the motor to reciprocating linear movement of the piston. The crankshaft defines a crank axis perpendicular to the reciprocation axis, and the motor defines a motor axis that is parallel with the reciprocation axis. A center of gravity of the impact power tool is positioned between the motor axis and the reciprocation axis.

Abstract: An impact power tool including a housing, a motor supported by the housing, a spindle coupled to the motor for receiving torque from the motor to cause the spindle to rotate, and a reciprocating impact mechanism operable to create a variable pressure air spring within the spindle. The impact mechanism includes a striker received within the spindle that reciprocates along a reciprocation axis in response to the variable pressure air spring, a piston that reciprocates along the reciprocation axis to induce the variable pressure air spring, and a crankshaft configured to convert continuous rotational motion from the motor to reciprocating linear movement of the piston. The crankshaft defines a crank axis perpendicular to the reciprocation axis, and the motor defines a motor axis that is parallel with the reciprocation axis. A center of gravity of the impact power tool is positioned between the motor axis and the reciprocation axis.