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.