A foldable saw is provided in which a latch mechanism for latching and securing a freely foldable saw blade body in its use position can be produced and assembled very easily with a minimum number of components on the basis of an idea different from the conventional ideas and that exerts a favorable latching effect. The foldable saw 1 includes, on a saw handle body 20, a latch body 10 made of spring wire and including a coil section 11, a stop pin section 12, a latch section 13, and an operation section 15. The saw handle body 20 includes at least a seating recess 23, a pin hole 24, and a receiving groove 22. The latch body 10 is configured, in the state of being attached to the saw handle body 20, such that the latch section 13 located in front of the coil section 11 enters into the receiving groove 22 by spring bias, and that the latch section 13 retreats against the spring bias in response to an operation of the operation section 15 located in the rear of the coil section 11.

A foldable saw is provided in which a latch mechanism for latching and securing a freely foldable saw blade body in its use position can be produced and assembled very easily with a minimum number of components on the basis of an idea different from the conventional ideas and that exerts a favorable latching effect. The foldable saw 1 includes, on a saw handle body 20, a latch body 10 made of spring wire and including a coil section 11, a stop pin section 12, a latch section 13, and an operation section 15. The saw handle body 20 includes at least a seating recess 23, a pin hole 24, and a receiving groove 22. The latch body 10 is configured, in the state of being attached to the saw handle body 20, such that the latch section 13 located in front of the coil section 11 enters into the receiving groove 22 by spring bias, and that the latch section 13 retreats against the spring bias in response to an operation of the operation section 15 located in the rear of the coil section 11.

A reciprocating saw blade includes an axially elongated blade body having a first end portion, a second end portion, a cutting edge extending from the first end portion to the second end portion, and an opposite back edge extending from the first end portion to the second end portion. An exposed first tang is coupled to the first end portion and is configured to removably mount the blade body in a blade holder of a powered reciprocating saw. An unexposed second tang is defined by a first score in the blade body between the first end portion and the second end portion. The first score is configured so that the second tang can be exposed by breaking off a first removable portion of the blade body at the first score. The second tang is configured to removably mount the blade body in a blade holder of a powered reciprocating saw when the second tang is exposed.

A saw system capable of cutting through a workpiece in one stroke is provided. The saw system includes a base, a turntable mounted on the base for rotation about a vertical axis, a support structure defining a cutting axis and fixedly attached to the turntable, and an elongated blade including a cutting edge. The turntable has a substantially planar support surface for supporting a workpiece. The support structure includes a pair of parallel sliding members, wherein the sliding members are disposed in a direction substantially parallel to the cutting axis. The elongated blade is spaced apart from the sliding members and is movable along the sliding members. The cutting edge includes a proximal end and a distal end, wherein an angle between an imaginary line connecting the distal end of the cutting edge to the proximal end thereof and its projection onto the turntable is an acute angle.

A saw blade for a reciprocating saw, a reciprocating saw and blade, and a method for making a slotted cut of uniform spacing along a length of the cut are disclosed. A pair of blades, each at an off set from the reciprocating axis, the saw blades can make the slotted cut in a substrate with a single pass of the reciprocating saw. In some embodiments, the saw blade includes at least one blade is mounted to an adapter at an offset from a reciprocating axis of the reciprocating saw. The offset of the blades may be adjustable to obtain a slotted cut of a uniform width.

A saw blade for a reciprocating saw, a reciprocating saw and blade, and a method for making a slotted cut of uniform spacing along a length of the cut are disclosed. A pair of blades, each at an off set from the reciprocating axis, the saw blades can make the slotted cut in a substrate with a single pass of the reciprocating saw. In some embodiments, the saw blade includes at least one blade is mounted to an adapter at an offset from a reciprocating axis of the reciprocating saw. The offset of the blades may be adjustable to obtain a slotted cut of a uniform width.

A saw system capable of cutting through a workpiece in one stroke is provided. The saw system includes a base, a turntable mounted on the base for rotation about a vertical axis, a support structure defining a cutting axis and fixedly attached to the turntable, and an elongated blade including a cutting edge. The turntable has a substantially planar support surface for supporting a workpiece. The support structure includes a pair of parallel sliding members having proximal and distal ends. The saw system further includes a handle assembly coupled with a bearing member, which is mechanically engaged with the sliding members, and an elongated blade fixedly attached to the bearing member. The elongated blade includes a serrated cutting edge that is acutely angled relative to the support surface.

An electric tool includes a rotary wheel driven to rotate around a central axis thereof, an action member configured to bear a cutter of the electric tool, and a counterweight. The rotary wheel drives the action member such that it reciprocates linearly in a first direction. The rotary wheel simultaneously drives the counterweight such that it not only reciprocates linearly in the first direction in an opposite manner to the action member, but also performs reciprocating swinging movement in a plane perpendicular to the central axis. The first direction is parallel to the plane.

A percussive massage device that includes a housing, an electrical source, a motor positioned in the housing, a switch for activating the motor, and a push rod assembly operatively connected to the motor and configured to reciprocate in response to activation of the motor. The housing includes first, second and third handle portions that cooperate to define a handle opening, wherein the first handle portion defines a first axis, the second handle portion defines a second axis and the third handle portion defines a third axis, and wherein the first, second and third axes cooperate to form a triangle.

A reciprocating saw includes a housing assembly and a motor positioned within the housing assembly. The motor includes a pinion. A drive mechanism is positioned within the housing assembly and includes a gear driven by the pinion, a hub coupled to the gear, a spindle, and a connecting rod. A clutch assembly is coupled to the drive mechanism to selectively transmit drive force form the gear to the hub. The clutch assembly includes a first disk coupled to the gear, a second disk coupled to the hub, a biasing member, and a threaded fastener. The biasing member is positioned between the hub and the gear to bias the first and second disks into frictional engagement. The threaded fastener extends through the gear and threadably engages the hub to couple the hub to the gear. Tightening the threaded fastener pulls the hub toward the gear to preload the biasing member.