Provided is a cutting implement which is easily ground or which needs no grinding and is safe. The cutting implement is a cutting implement including an acting portion 3 that cuts an object to be cut, the cutting implement configured such that the acting portion 3 includes a main body portion 4 and a small thickness portion 5 whose thickness is smaller than the thickness of the main body portion 4 and the small thickness portion 5 has a width of 2.5 to 20 mm and a thickness of 0.1 to 0.5 mm.

Provided is a cutting implement which is easily ground or which needs no grinding and is safe. The cutting implement is a cutting implement including an acting portion 3 that cuts an object to be cut, the cutting implement configured such that the acting portion 3 includes a main body portion 4 and a small thickness portion 5 whose thickness is smaller than the thickness of the main body portion 4 and the small thickness portion 5 has a width of 2.5 to 20 mm and a thickness of 0.1 to 0.5 mm.

The present disclosure relates to safety blades for use in utility knives, related assemblies and methods of manufacturing. More specifically, the present disclosure relates to safety blades for use in utility knives, related assemblies and methods of manufacture which limit user exposure to associated cutting edges.

The present disclosure relates to safety blades for use in utility knives, related assemblies and methods of manufacturing. More specifically, the present disclosure relates to safety blades for use in utility knives, related assemblies and methods of manufacture which limit user exposure to associated cutting edges.

A chemically etched cutting tool includes a metal base having a first side and a second side, and a chemically etched blade on at least one side of the metal base, the chemically etched blade forming a cutting edge at the intersection of the first side of the chemically etched blade and the second side of the chemically etched blade. The first side of the chemically etched blade includes one or more concave portions and one or more convex portions with at least one inflection point between the concave portions and one or more convex portions. The second side of the chemically etched blade includes one or more concave portions and one or more convex portions with at least one inflection point between the concave portions and one or more convex portions.

A chemically etched cutting tool includes a metal base having a first side and a second side, and a chemically etched blade on at least one side of the metal base, the chemically etched blade forming a cutting edge at the intersection of the first side of the chemically etched blade and the second side of the chemically etched blade. The first side of the chemically etched blade includes one or more concave portions and one or more convex portions with at least one inflection point between the concave portions and one or more convex portions. The second side of the chemically etched blade includes one or more concave portions and one or more convex portions with at least one inflection point between the concave portions and one or more convex portions.

A switchblade includes a casing that defines a cavity. A blade having a cutting edge has a retracted position in which the cutting edge is inside the cavity and a deployed position in which the cutting edge is outside of the cavity. An actuator is slidably engaged with the casing. A slider inside the cavity defines a tab on a first side of the slider and engaged with the actuator and front and rear sloped surfaces on a second side of the slider. A front operator and a rear operator are inside the cavity, and a spring connects the front operator to the rear operator. A front lock on the second side of the slider inside the cavity is engaged with the blade in the deployed position. A rear lock on the second side of the slider inside the cavity is engaged with the blade in the retracted position.

A method for forming a cutting tool includes masking a metal base with one or more masks, the one or more masks including at least one variable permeability mask, and chemically etching the masked metal base to form a blade of the cutting tool.

A method for forming a cutting tool includes masking a metal base with one or more masks, the one or more masks including at least one variable permeability mask, and chemically etching the masked metal base to form a blade of the cutting tool.

The present disclosure relates to safety blades for use in utility knives, related assemblies and methods of manufacturing. More specifically, the present disclosure relates to safety blades for use in utility knives, related assemblies and methods of manufacture which limit user exposure to associated cutting edges.