A cutting tool, in particular a knife, includes at least one blade with a blade body and a cutting edge. In order to grind or polish the cutting tool with precision even without a grinding template, provision is made for the cutting tool to have at least one supporting portion which defines a supporting plane by means of which, for the purpose of grinding and/or polishing the cutting edge, the cutting tool can be stably placed on a planar underlying surface, the blade body therefore being oriented at a working angle ranging from 65 to 80 in relation to the underlying surface. A set for grinding and/or polishing a cutting tool and also a corresponding method are likewise disclosed.

A clamping assembly includes first and second jaws supported above a base in opposed, spaced-apart alignment on opposite sides of a central clamp axis, each jaw having a proximal end portion adjacent the base and an opposite distal end portion, where the jaws are pivotable between an open position and a closed position. A wedge movable along the central clamp axis between the proximal end portions of the pair of jaws in response to moving a handle between a first handle position and a second handle position. A cam assembly between the wedge and the base includes a cam, a follower on the proximal handle end portion, and a spring between the cam and the base. Compressing the spring increases an axial distance between the cam and the wedge.

Method and apparatus for sharpening a cutting edge of a cutting tool, such as a kitchen knife. In some embodiments, an abrasive assembly has a frame, a handle, and a cartridge that supports a plurality of abrasive members each having an associated abrasive surface. A rod affixes the abrasive assembly to a base assembly to facilitate movement of the abrasive assembly along the cutting edge of the tool responsive to engagement, by a user, of the user handle. Each abrasive member is configured to be moved, by the user, with respect to the handle to present each abrasive surface in turn. In some cases, the cartridge is rotatable about a cartridge axis that may be parallel or non-parallel to a central axis of the rod.

A knife sharpener for the manual sharpening of knives that includes a knife clamp member having first and second clamping members, a guide member that defines upper and lower guide members, and a base member. Each upper and lower guide member includes a plurality of apertures sized and shaped for receiving a guide rod that includes a sharpening stone. The knife clamp member further includes embodiments assuring the knife blade is held securely and positioned between the first and second clamping members in the same position in which the knife blade was installed the last time it was sharpened.

Method and apparatus for sharpening a cutting edge of a cutting tool, such as a kitchen knife. In some embodiments, an abrasive assembly has a frame, a handle, and a cartridge that supports a plurality of abrasive members each having an associated abrasive surface. A rod affixes the abrasive assembly to a base assembly to facilitate movement of the abrasive assembly along the cutting edge of the tool responsive to engagement, by a user, of the user handle. Each abrasive member is configured to be moved, by the user, with respect to the handle to present each abrasive surface in turn. In some cases, the cartridge is rotatable about a cartridge axis that may be parallel or non-parallel to a central axis of the rod.

A knife sharpener for the manual sharpening of knives that includes a knife clamp member having first and second clamping members, a guide member that defines upper and lower guide members, and a base member. Each upper and lower guide member includes a plurality of apertures sized and shaped for receiving a guide rod that includes a sharpening stone. The knife clamp member further includes embodiments assuring the knife blade is held securely and positioned between the first and second clamping members in the same position in which the knife blade was installed the last time it was sharpened.

An apparatus for sharpening a cutting implement includes a base assembly and first and second clamping members pivotably supported by the base assembly. The clamping members each have an inside surface, a proximal end portion, and a distal end portion, where the second inside surface faces and is spaced apart from the first inside surface. The clamping members are adapted to pivot to clamp a cutting implement between the inside surfaces. A clamping assembly attached to the base assembly includes a cam member movably supported by the base assembly, a follower assembly disposed in operational engagement with the cam member and with the proximal end portions of the first and second clamping members. A handle is operatively connected to the cam member, where operating the handle moves the cam member, thereby moving the follower assembly and pivoting the first and second clamping members.

A sharpening tool includes a main body, a first grindstone unit, a second grindstone unit, a stop plate, a blade and a sharpening bar. The main body has a grip and an extension neck. The grip has a receiving space and a receiving channel. The extension neck has an arc-shaped profile and has a first positioning recess and a second positioning recess. The first grindstone unit is mounted in the first positioning recess. The second grindstone unit is mounted in the second positioning recess. The stop plate is pivotally mounted on the main body and has two pivot ears and an opening. The blade is pivotally mounted on the main body and received in the receiving channel. The sharpening bar is inserted into the receiving space.

A sharpening tool includes a main body, a first grindstone unit, a second grindstone unit, a stop plate, a blade and a sharpening bar. The main body has a grip and an extension neck. The grip has a receiving space and a receiving channel. The extension neck has an arc-shaped profile and has a first positioning recess and a second positioning recess. The first grindstone unit is mounted in the first positioning recess. The second grindstone unit is mounted in the second positioning recess. The stop plate is pivotally mounted on the main body and has two pivot ears and an opening. The blade is pivotally mounted on the main body and received in the receiving channel. The sharpening bar is inserted into the receiving space.

An apparatus including a body configured to house a writing tool therein and a sharpener connected to the body. The sharpener is configured to allow a user to sharpen a knife by gripping the body and sliding the knife on the sharpener.