Scalpels and wodcult knives exist in 3 main categories: interchangeable knives, scalpel blade holders, and swivel scalpels (articulated scalpel blade holder, conductrotation of the blade). The knives have blades that need to be sharpened regularly (like wood gouges). Scalpel blades are usually changed when they become worn.
Woodcut/linocut and carving knives (stationary / interchangeable blades)
4 different blades are available. These carbon steel blades (similar to the wood gouges offered on this site) are ideal for engraving on wood or linoleum, as well as for carving, but must be resharpened periodically (on stone and sharpening leather). The carbon steel is extremely sharp, and the blade is not brittle like tungsten carbide scalpel blades.
Scalpel blade holder (stationary / interchangeable blades)
Allows you to use the majority of classic scalpel blades (notably Swann Morton A.C.M. n°16). I also offer tungsten carbide blades that are much sharper and more durable. Compared to knives with carbon steel blades, carbide blades are also sharp, but more brittle. Once worn, they are generally changed (otherwise re-sharpened on diamond stones)
Swivel scalpel blade holder (interchangeable conduct rotating blade)
The handle is articulated in the middle to have a mobile but controlled blade. The pumice and middle fingers are used to control the position of the blade. The index finger is used to control the pressure on the blade (and therefore the depth of cut). This type of tool is traditionally used for leather working. Classic scalpel blades can be used (notably Swann Morton A.C.M. n°16). I also offer tungsten carbide blades, much sharper, for cutting thick paper, leather, as well as for cutting wood or linoleum.