A blade retainer includes a first end face defining a first end of the blade retainer, a second end face opposite the first end face and defining a second end of the blade retainer, and a first contacting face positioned between the first end face and the second end face. The first contacting face is configured to contact a blade.

A blade retainer includes a first end face defining a first end of the blade retainer, a second end face opposite the first end face and defining a second end of the blade retainer, and a first contacting face positioned between the first end face and the second end face. The first contacting face is configured to contact a blade.

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.

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.