A tube jig device for clamping a tube to be expanded by a tube flaring tool includes a base and a height gauge. The base has a plurality of gripping holes, and each of the gripping holes has a round hole and an expanding hole. The height gauge, which has a plurality of stop portions, is movably connected to the base with the stop portions on the first surface and parallel to the first surface. The height gauge is moved to a position where the stop portions are above the expanding holes respectively for the tube clamped in the gripping hole to abut against and waiting to be expanded by the tube flaring tool.

A mold tool generally includes a base, a die assembly, a tightening element, a threaded element, and at least one shaping cap. The base defines a cutout, a first threaded hole opposite to the cutout, and a second threaded hole. The die assembly, composed of a first module and a second module, can be inserted into a receiving space of the base. The tightening element can be screwed into the second threaded hole of the base to fix the die assembly in place. The threaded element can be screwed into the first threaded hole of the base. The shaping cap can be fitted at one end of the threaded element. The die assembly defines channels of various diameters each for holding a tube of a specific diameter. The shaping cap can urge one end of a tube held in the die assembly to form a specific type of flare.

A flaring tool is provided for flaring an end of a pipe or tube. The tool includes a locking mechanism having a collar and a collet with two or more collet pieces that engage the collar prior to and during a flaring operation. The collet can receive a pipe or tube when the collet is in an expanded or open position. The collet pieces have external flanges for engaging the collar during clamping and unclamping of the tube, each flange having first and second flange portions that sequentially engage an inner surface of the collar, the first flange portion guiding insertion of the collet into the collar and the second flange portion causing the collet pieces to clamp onto the tube. A flaring mechanism moves a flaring mandrel towards the end of the tube when the collet is clamped, whereby the mandrel engages and flares the end of the tube.

The present disclosure defines a hand operated grinding tool for finishing an interface surface of a fluid conduit. The grinding tool includes a fixture having grinding tool yoke and a work piece yoke. A shaft with a tool head connected to one end and an actuator connected to the other end is configured to slide and rotate relative to the grinding tool yoke. The tool head can be configured to engage and finish a surface of a tube and/or a male fitting.

An adjustable insertion-depth tube flaring tool is provided. A selector housing is disposed on a yoke. An adjustment nut is disposed within the selector housing. An adjustment screw is disposed within at least one of the selector housing and the yoke. A clutch housing has therein at least one biasing element, at least one lower clutch plate, and at least one upper clutch plate. An upper clutch plate rotation supporting element interacts with a lower clutch plate rotation supporting element to facilitate rotation of the upper clutch plate over the lower clutch plate in one direction. At least a portion of a shaft proximal end and an upper clutch plate inner wall are shaped to interact with one another in such a manner that the upper clutch plate is selectively prevented from rotating about the shaft proximal end when the upper clutch plate is disposed on the shaft proximal end.

Tube flaring tool comprising a tube receiving region comprising first and second gripping dies retractable with respect to each other and positionable to cooperatively define an opening for receiving a tube; a first clutch shaft; a support housing having a bore for receiving a second clutch shaft; a clutch plate; a flare forming head operable to flare the free end of the tube; and a biasing member urging the flare forming head axially. The first clutch shaft may have an outer configuration adapted to be engaged by a 12 point or square drive SAE ratchet wrench for creating mechanical advantage to actuate the flare forming head. When the force that the biasing member urges the flare forming head axially is overcome, the clutch plate disengages from the second clutch shaft such that further actuation of the first clutch shaft does not rotate the flare forming head shaft, preventing over-flaring.

Rotating insert for flanging and widening metal tubes, a flanging bit, with a metal body, for use with flanges and metal tube widening in split-type air-conditioning connection systems, domestic refrigerators, chiller cabinets and the like; characterized by the rotary actuation method, which can be coupled to a drill or screwdriver, which requires no counterpoint mechanism (1), which is composed of a coupling cylindrical body (15) and a flanging tip with a single stage (19) or multiple stages (20), with different flanging diameters (gauges).

A pipe expanding device includes: a clamping assembly including a pipe expanding end, an opposite connecting end, and a receiving space in communication with the pipe expanding end and the connecting end; a pipe expanding assembly movably disposed in the receiving space; a connecting member disposed at the connecting end; and an elastic member disposed in the receiving space and located between the pipe expanding assembly and the connecting member to push the pipe expanding assembly back toward the connecting end after the pipe expanding assembly is moved toward the pipe expanding end. The elastic member is hidden in the clamping assembly and capable of automatically pushing the pipe expanding assembly back to its original position. Therefore, the motion of the pipe expanding assembly won't be affected by the displacement of the pipe expanding tool, and the pipe expanding assembling therefore won't get bent or fall off.

A holding device for a flanging tool includes two clamping parts movable towards one another to respective clamping positions. A stop is configured to abut, in an abutment position, an end of a pipe to be flanged. An actuating mechanism is configured to move the clamping parts into the respective clamping positions so as to clamp the pipe to be flanged. The actuating mechanism is coupled to the stop such that actuation of the actuating mechanism moves the stop out of the abutment position.

A manual hydraulic pipe expander operable by a single hand includes a handle with a gripping part operable by a single hand; a wrench provided rotatably relative to the handle; a plunger movable back and forth relative to the handle; a pipe expanding assembly including a pipe expanding tube, and a piston and a cone head provided in the pipe expanding tube; and an oil bag. The handle and the wrench are configured such that the projections of the wrench and the gripping part of the handle on a swinging plane formed by the wrench coincide with each other in a case that the swinging angle of the wrench is maximum. The manual hydraulic pipe expander operable by a single hand has the beneficial effect that it is more labor-saving.