Knife sharpener systems and methods are provided. In one exemplary embodiment, a knife sharpening system can include a housing configured to receive a knife blade at a proximal end thereof and a sharpening element movably mounted to the housing and configured to sharpen a cutting edge of a knife blade by moving relative to the housing along and against a cutting edge of a knife blade disposed in the housing. The knife sharpening system can include an access door pivotally coupled to a distal end of the housing and configured to allow access to the sharpening element to allow removal of at least a portion of the sharpening element.

A knife sharpening device has two sharpening rods which are pivotally arranged on a base and arranged in a V-shape relative to one another to allow insertion of a knife therebetween. The sharpening rods each comprise at least one sharpening insert. The sharpening rods are held in a rest position at a predetermined distance from one another in their V-shaped arrangement by the force of a respective spring. The sharpening rods are spreadable apart in a sharpening position by insertion of the knife upon contact of the knife with the sharpening inserts against the force of the spring. The sharpening rods are held by a single holding point on the base.

Knife sharpener systems and methods are provided. In one exemplary embodiment, a knife sharpening system can include a support structure configured to hold a knife having a handle and a blade extending therefrom, and a carriage assembly mounted on the support structure. The carriage assembly can have a sharpening element that is configured to sharpen a cutting edge of the blade. The carriage assembly can be movable relative to the knife blade to cause the sharpening element to apply a force to the cutting edge of the knife blade.

Knife sharpener systems and methods are provided. In one exemplary embodiment, a knife sharpening system can include a support structure configured to hold a knife having a handle and a blade extending therefrom, and a carriage assembly mounted on the support structure. The carriage assembly can have a sharpening element that is configured to sharpen a cutting edge of the blade. The carriage assembly can be movable relative to the knife blade to cause the sharpening element to apply a force to the cutting edge of the knife blade.

Systems, devices, and methods for providing different types of sharpeners for knives with a removable angle gauge to determine which knife sharpener to use for individual knives. The sharpener can include three angle sizes of honing ceramic dual wheel sharpeners, three angle sizes of edge shaving diamond coated dual wheel sharpeners, and three angle sizes of new edge blade tungsten rod sharpeners. One angle size can cover approximately 13 degrees to approximately 15 degrees, and include 14 degrees. An angle size can cover approximately 16 degrees to approximately 18 degrees and include 17 degrees. And a third angle size can cover approximately 19 degrees to approximately 21 degrees and include 20 degrees. The removable angle gauge can be a generally rectangular plate with a plurality of grooves, that cover an approximately 13 degree groove, an approximately 14 degree groove, an approximately 15 degree groove, an approximately 16 degree groove, an approximately 17 degree groove, an approximately 18 degree groove, an approximately 19 degree groove, an approximately 20 degree groove, and an approximately 21 degree groove.

A knife block may include a block body with a recessed portion and a block insert positioned at least partially within the recessed portion. The block insert may include a first knife slot and a second knife slot. The knife block may include a knife sharpener coupled to the block insert, where the first knife slot is sized such that a first knife is sharpened by the first knife sharpener each time the first knife is removed from the first knife slot. The knife block may include a first knife storage slot and a second knife storage slot.

A hand tool edge tester for evaluating the sharpness and smoothness of the cutting edge of a blade for the hand tool like a knife is provided according to the invention. The knife blade is held stationary along a horizontal, longitudinal axis. A long piece of solid tape of the cuttable substrate material like Teflon moved within a reel-to-reel tape mechanism attached to a tape carriage travels simultaneously horizontally as the tape carriage moves along a longitudinal axis, and along an upwardly inclined, diagonal pathway defined by the reel-to-reel mechanism. The blade of the hand tool slices the upwardly, diagonally moving tape ribbon with the load cell measuring the cutting force exerted by the tape ribbon against the blade as it is moved along the distance of the cutting edge substantially between the hand tool handle and the blade tip. The diagonal axis for the path of the traveling cuttable substrate media tape allows the knife blade to cut the tape more easily without tearing, along with an approximate 90° angle between the blade tip and the cutting media pathway, thereby providing a more accurate measurement by the load cell of the tip portion of the blade as it slices the tape. The cutting force data produced by the load cell yields a cutting profile for the cutting edge along the hand tool blade to indicate the relative sharpness and smoothness of the cutting edge.

A cutter sharpener includes a base with a receiving unit, the receiving unit having a pivoting portion and a mounting portion with a positioning section; a support having a pivoting portion pivotally connected to the pivoting portion of the base, a sharpening block mounting portion and a positioning section positioned in the positioning section of the base, and a sharpening block mounted in the sharpening block mounting portion of the support.

A knife block may include a block body with a recessed portion and a block insert positioned at least partially within the recessed portion. The block insert may include a first knife slot and a second knife slot. The knife block may include a first knife sharpener coupled to the block insert, where the first knife slot is sized such that a first knife is sharpened by the first knife sharpener each time the first knife is removed from the first knife slot, and a second knife sharpener coupled to the block insert, where the second knife slot is sized such that a second knife is sharpened by the second knife sharpener each time the second knife is removed from the second knife slot. The knife block may include a first knife storage slot and a second knife storage slot.