The Bosch PRO Punching Die in size M40 is the largest in the metric range, punching holes up to 40.5 mm in diameter — perfect for large cable glands, multi-cable entries, and oversized conduit fittings in electrical enclosures and industrial control panels. Despite the larger format, the dual cutting edge design still splits the waste slug in half during the punch stroke, keeping the tool running freely and delivering a clean, burr-free result. Heat-treated high-alloy steel construction gives this die the robustness needed for the most demanding sheet metal punching tasks. Features and Benefits: • Dual cutting edges prevent jamming and produce burr-free holes with ease • Suitable for use in steel up to 3 mm thick and stainless steel up to 2.5 mm thick • Heat-treated high-alloy steel ensures long-lasting strength and durability • Designed for use with hydraulic knockout tools Specifications: Size: M40 Max hole diameter: 40.5 mm

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