A front grease retention unit is provided under a front plunger and a wall is provided between the retention unit and a gear accommodation unit. Furthermore, a front grease receiving member is provided under the front plunger and a front metal bearing, and grease falling into the front grease receiving member is sent toward the outer circumferential face of the front plunger. The grease is pushed out by using the vertical oscillation of a front metal anchor bolt in orbital mode. A rear grease receiving member is provided under a rear plunger and a rear metal bearing, and grease falling into the rear grease receiving member is sent toward the outer circumferential face of the rear plunger. The grease in a grease reservoir groove is pushed out by using the vertical oscillation of a rear metal anchor bolt in orbital mode.

A reciprocating saw includes a blade assembly having a spindle and a blade clamp. The blade clamp includes a cover rotatably coupled to the spindle, and a detent movable in a radial direction to adjust the blade clamp between a locked configuration and an unlocked configuration. The cover is rotatable between a first rotational position relative to the spindle coinciding with the locked configuration, and a second rotational position relative to the spindle coinciding with the unlocked configuration. The reciprocating saw further includes a barrel surrounding at least a portion of the blade clamp. The barrel includes a plurality of projections extending from the barrel toward the blade clamp. At least one of the projections is engageable with the cover to rotate the cover from the second rotational position to the first rotational position, thereby adjusting the blade clamp from the unlocked configuration toward the locked configuration.

A blade clamp, for use with a power tool having a reciprocating spindle, includes a cover rotatably coupled to the spindle and a detent received within a bore of the spindle. The detent is movable in a radial direction relative to a longitudinal axis of the spindle to adjust the blade clamp between a locked configuration and an unlocked configuration. The cover is rotatable between a first rotational position relative to the spindle coinciding with the locked configuration, and a second rotational position relative to the spindle coinciding with the unlocked configuration. The blade clamp further includes a sleeve in which the detent is slidably received. The sleeve includes a non-corrosive material for inhibiting corrosion of the detent.

A power tool including a housing with two housing halves joined together at a joining line. A motor housed in the housing. A blade holder which is driven by the motor and is configured to hold a blade so as to cut an object with the blade. A blade storage compartment configured to hold the blade when the blade is not in use for cutting. The blade storage compartment is formed by the two housing halves.

A method of manufacturing a spindle for a reciprocating saw includes machining a first portion of the spindle and forming a throughbore extending through the first portion via a flow welding process. The flow welding process includes rotating a rod relative to the spindle and inserting the rod into the first portion of the spindle, thereby displacing material from the spindle in a direction away from the rod to form the throughbore and a collar adjacent the throughbore.

A power tool includes a housing and a handle coupled to the housing. The handle is configured to be gripped by an operator to manipulate the power tool. The power tool also includes a drive system supported in one of the housing or the handle. The drive system includes a frame, a motor at least partially supported by the frame, and a transmission driven by the motor. The transmission is at least partially supported by the frame. The frame is composed of a non-electrically conductive material.

A blade clamp, for use with a power tool having a reciprocating spindle, includes a cover rotatably coupled to the spindle and a detent received within a bore of the spindle. The detent is movable in a radial direction relative to a longitudinal axis of the spindle to adjust the blade clamp between a locked configuration and an unlocked configuration. The cover is rotatable between a first rotational position relative to the spindle coinciding with the locked configuration, and a second rotational position relative to the spindle coinciding with the unlocked configuration. The blade clamp further includes a sleeve in which the detent is slidably received. The sleeve includes a non-corrosive material for inhibiting corrosion of the detent.

A reciprocating power tool may include a driving system including a motor and a transmission received in a housing to drive a reciprocating mechanism. A counterbalance mechanism may be coupled between the driving system and the reciprocating mechanism. The counterbalance mechanism may include a rotating counterbalance mechanism including a first rotating counterweight member and a second rotating counterweight member coupled to an output gear of the driving system. The counterbalance mechanism may include a rocking counterweight member coupled between the output gear and the housing. The output gear may include a recessed portion in which the first rotating counterweight member and a clutching system are received.

A reciprocating saw includes a housing, a motor positioned within the housing, a drive shaft defining a longitudinal axis, and a spindle positioned substantially within the housing and coupled to a wobble plate. The spindle includes a throughbore formed by a flow welding process, wherein the throughbore extends through the spindle to receive the wobble plate.

A reciprocating saw includes a housing, a motor, and a drive assembly. The motor is positioned within the housing and includes a stator assembly with a stator body and a rotor assembly with a motor shaft and a rotor ring that surrounds the stator body. The rotor assembly is rotatable relative to the stator assembly about a motor axis. The drive assembly is positioned within the housing and coupled to the motor. The drive assembly includes a spindle configured to reciprocate along a tool axis that is perpendicular to the motor axis.