Sprue cutter glossary of terms
A bevel placed on the edge of an object is an angled face that is not perpendicular (at 90° or a right angle) to the other faces of the object. For more information on bevels see our page
Leverage is the term used to describe the mechanical advantage achieved by using a tool that features a lever. The relationship between the length of a lever and the leverage it can exert was defined by Archimedes as the law of the lever. For more information on leverage see our page
A mould tree is the name given to a casting that features multiple parts connected by sprues around a central runner. It is usually produced by a manufacturing method called investment casting.
A nub (also known as a pinch or rise) is the remains of the sprue that is left attached to the part once you have cut it off the mould tree.
A pivot is the point around which rotation occurs in a lever system. For example, moving the handles (levers) of a sprue cutter causes the jaws to rotate around the pivot point(s) opening and closing them.
Rusting is a form of corrosion undergone by metals that contain iron. It occurs when such metals are left unprotected in the presence of oxygen and moisture in the atmosphere.
A sprue is the small section of material that connects the many parts produced in a moulding manufacturing process.
Toughness is the measure of a material's ability to stretch or compress without breaking or shattering when a force is applied to it.