A blade-replaceable cutting tool includes: a first handheld portion; a second handheld portion rotatably connected to the first handheld portion; a cutting structure rotatably connected to the first handheld portion, the cutting structure including a blade mounting plate rotatably mounted to the first handheld portion and a blade detachably mounted to the blade mounting plate; and a locking mechanism configured to lock the blade on the blade mounting plate when in contact with the blade, and to unlock the blade when separated from the blade, so that the blade can be detached from the blade mounting plate.

Access port cutters and related systems and methods can be used to cut an access port to a desired length based on particular patient and/or surgical procedure needs at a point of use. More particularly, an access port cutter can include a base with an opening that can receive an access port therein such that a desired length of the access port can extend from the opening. An actuation mechanism can translate a blade linearly along at least a portion of the base such that the blade can traverse the opening and cut across the access port. In some embodiments, the actuation mechanism can include a handle that can pivot relative to the base to drive the blade. One or more safety features can reduce the risk of inadvertent actuation of the blade and/or prevent debris from contaminating a surgical site or falling onto a patient.

A cutting assembly for cutting tubing generally includes first and second arms pivotally coupled together such that the first arm can pivot relative to the second arm, and a blade releasably coupled to the first arm and/or the second arm and oriented such that a longitudinal axis of the blade is generally parallel to a longitudinal axis of the first arm. The blade is removable from the first arm and/or the second arm by sliding the blade longitudinally in a direction along the longitudinal axis of the first arm. A release mechanism operates to selectively allow the blade to be removed from the first arm and/or the second arm.

A cutting device for the chipless cutting of a material comprises a cutting part and a supporting part. The cutting part and the supporting part are designed to be rotated with respect to one another about an axis of rotation between an open position and a closed position. A hand lever is articulated to the supporting part for pivoting about a pivot axis. A ratchet mechanism converts a back-and-forth motion of the hand lever into a continuous rotational motion of the cutting part toward the closed position. The ratchet mechanism includes a toothing and a drive pawl, which can be brought into an effective position with respect to the toothing. Furthermore, the cutting device comprises a coupling mechanism, which converts a one-time pivoting motion of the hand lever into a rotational motion of the cutting part. A separate coupling element transmits force from the hand lever to the cutting part.

A blade-replaceable cutting tool includes: a first handheld portion; a second handheld portion rotatably connected to the first handheld portion; a cutting structure rotatably connected to the first handheld portion, the cutting structure including a blade mounting plate rotatably mounted to the first handheld portion and a blade detachably mounted to the blade mounting plate; and a locking mechanism configured to lock the blade on the blade mounting plate when in contact with the blade, and to unlock the blade when separated from the blade, so that the blade can be detached from the blade mounting plate.

A power tool accessory includes a housing having a rear end portion and front end portion; an input shaft at least partially received in the rear end portion, extending along an axis, and configured to be coupled to a tool holder of a rotary power tool; a threaded shaft received in the housing and rotationally driven by the input shaft; a blade holder configured to move along the axis upon rotation of the threaded shaft; and a cutting blade configured to be retained by the blade holder. A workpiece holder is coupled to the front end portion of the housing and is configured to hold an elongated member. Upon rotation of the input shaft, the threaded shaft rotates, causing the blade holder to move axially toward the front end portion of the housing, causing the blade to move at least partially into the workpiece holder to cut the elongated workpiece.

A tube cutter comprises a main body, a cutting member, a base and a restricting member. The main body has a cutting space and a groove. The groove includes a top opening and two side openings. The cutting member is received in the main body, having a least a portion protruding into the cutting space. The base is detachably received in the groove of the main body and switched between a first angle and a second angle. The restricting member is movably received in the main body and adjacent to one of the side openings to be turned between a first position and a second position. At least a portion of the restricting member blocks the side opening when the restricting member is turned to the first position; the restricting member leaves the side opening when the restricting member is turned to the second position.

A power tool accessory includes a housing having a rear end portion and front end portion; an input shaft at least partially received in the rear end portion, extending along an axis, and configured to be coupled to a tool holder of a rotary power tool; a threaded shaft received in the housing and rotationally driven by the input shaft; a blade holder configured to move along the axis upon rotation of the threaded shaft; and a cutting blade configured to be retained by the blade holder. A workpiece holder is coupled to the front end portion of the housing and is configured to hold an elongated member. Upon rotation of the input shaft, the threaded shaft rotates, causing the blade holder to move axially toward the front end portion of the housing, causing the blade to move at least partially into the workpiece holder to cut the elongated workpiece.

A cutter includes a main body, a cog assembly, and a blade. The main body is provided with an anvil. The cog assembly includes a drive shaft and a first and a second cog. The drive shaft is rotatably connected to the main body. The drive shaft has a first end configured to detachably connect which a power tool. The first cog moves synchronously with the drive shaft. The second cog is rotatably connected to the main body and rotates upon rotation of the first cog. The blade is rotatably connected to the main body and connected to the second cog. The blade is rotatable between a deployment position and a cutting position and has a cutting edge. The cutting edge is disposed away from the anvil when the blade is in the deployment position, but is adjacent to the anvil when the blade is in the cutting position.

A gripping system is for use with a pipe cutting tool having a pair of handles and a blade. The gripping system includes an elongate first gripping body configured to be selectively engageable to a first handle to extend along a portion of the first handle. The first gripping body includes a first gripping surface adapted to enhance friction against a lid when the first gripping surface is urged against the lid. An elongate second gripping body is configured to be selectively engageable to a second handle to extend along a portion of the second handle when engaged therewith. The second gripping body includes a second gripping surface adapted to enhance friction against the lid when the second gripping surface is urged against the lid. The gripping bodies are engageable with the handles such that the gripping surfaces are positionable to engage with separate portions of the lid.