Designed for heavy workshop use, this Boehm kit provides a wide 3–30mm punching range along with a high‑quality hand chuck, fifteen precision‑ground punches and a ring cutter for enhanced performance on thicker materials. The ring cutter improves accuracy and cutting cleanliness, especially on multi‑layer gaskets, tougher rubber compounds and dense plastic sheet. This expanded kit delivers exceptional versatility for fabrication shops and maintenance engineers who require consistent, clean hole cutting across a wide range of materials.