ET5 .Metal Stud Punch: punches 1-11/32" (3/8") hole into metal gauge 20 or lighter. Extended throat cuts 3-1/2 inches deep in to stud. Offset handles to get in to tight places easier. Better leverage for easier punching. Replaceable case-hardened cutter and die. Lightweight high strength aluminum alloy. One year warranty against breakage when used on studs 20 gauge or lighter. Made in the USA since 1982. Free Shipping to US contiguous states.