The q max 11 16 sheet metal hole punch is designed for cutting mid-sized holes in sheet metal up to 16 gauge, making it ideal for smaller electrical installations, ventilation grilles, and precision fabrication work where a three-quarter-inch aperture is required. This versatile size bridges the gap between smaller and larger punch dimensions. Featuring heat-treated cutting edges with a black anti-corrosive surface finish, this punch delivers reliable performance whilst resisting rust in demanding workshop conditions. The special design ensures an even load during cutting, producing burr-free holes that need no additional finishing. Operation is straightforward: drill a pilot hole to clear the hexagonal screw, thread the die and screw through the metal, then tighten the die nut to cut cleanly through the material. Supplied individually boxed without a key. This punch requires a 7 32 hexagonal wrench, which should be ordered separately. Features and benefits: 11 16 hole diameter for mid-range applications heat-treated cutting edges ensure long-lasting performance anti-corrosive black finish for workshop durability produces clean, burr-free holes requiring no finishing compatible with 7 32 hexagonal wrench specifications: punch type: imperial diameter in : 11 16 key type: 7 32in hex key pilot drill in : 11 32