The q max 19mm sheet metal hole punch provides robust hole-cutting capability for sheet metal up to 16 gauge. This near-20mm size is excellent for larger conduit installations, sizeable cable entries, and general fabrication work requiring a 19mm aperture. Featuring heat-treated cutting edges with a black anti-corrosive finish, this punch consistently produces clean, burr-free holes. The special load distribution design ensures smooth, even cutting action, making operation efficient and reducing operator fatigue during repetitive tasks. As a larger punch, this 19mm model uses the modified configuration with threading in the punch itself rather than on the hexagonal screw, eliminating the need for a die nut. This streamlined design simplifies setup and operation. An 8mm hexagonal wrench mb type is required to operate the mechanism effectively. Features and benefits: 19mm hole diameter perfect for larger mounting and conduit applications operates with 8mm hexagonal wrench mb type, sold separately simplified configuration without die nut for faster setup heat-treated edges provide consistent, durable performance produces burr-free holes with no finishing required specifications: punch type: metric diameter mm : 19 key type: mb. 8Mm hex key pilot drill mm : 11