hole punch sheet metal

The hydraulic knockout kits here are rated for iron up to 1/8" (11 gauge) thickness and stainless steel up to 1/16" (16 gauge).

Options include hydraulic punch driver kits that use a 10‑ton pump, low‑force/manual lever punches to reduce effort, plier‑style handheld one‑hole punches, and hollow punch mechanisms (noted for clean paper punching).

Hydraulic kits are described as portable and often include a sturdy metal carrying case with a handle and double metal locks; product details and bullet points also list a carrying case among included items.

Several punches include removable chip trays and base openings for disposal; some office punches add built‑in rulers and edge guides for accurate hole placement.

Warranties vary: examples include a 30‑Day Limited Warranty, a 1‑Year Limited Warranty, a manufacturer's 7‑year warranty, and a Lifetime Limited Warranty.