Cutting tool with controllable cutting depth - has handle with round or elliptical blade which can rotate or be locked in any position by sliding catch in handle

摘要

The cutting tool consists of a handle with a pivoted circular blade at one end. The blade has a series of perforations which engage with a sliding catch in the handle to enable it to be locked in any position. The shape of the blade may be circular, elliptical or star-shaped with any number of points, or any other shape, with its pivoting axis located eccentrically. - The handle can be in one section with a slot for the blade, or in two sections providing a cover for the blade. In a further variant the end of the handle opposite the circular blade can be equipped with a sliding pointed blade.