The Lang Tools Kastar 950 Gasket Hole Punch Set is designed for cutting holes and internal radii in gaskets and other soft materials such as rubber, linoleum, felt fiber and lead foil. The set includes ten punch sizes ranging from 1/4 inch to 1 inch to cover a wide range of cutting needs. A long driving mandrel provides stability and consistent cutting performance when used with a hammer or mallet. Built for professional use, the punches deliver reliable results and long service life in automotive, industrial and maintenance applications.