Klein Tools Knockout Draw Stud

Yes. The draw stud is rated for both mild steel and stainless steel, so it holds up for panel and box work in stainless as well as standard painted steel enclosures.

A draw stud is the threaded pull rod that connects your punch and die to the ram or driver. It is not a punch set on its own. You supply the punch and die for the conduit size you are cutting, plus a manual driver or hydraulic ram. Klein offers this stud in 3/8-inch x 2-5/8-inch and 3/4-inch x 4-inch so it matches the thread on the tooling you already own.

Go with the 3/4-inch x 4-inch stud (model 53872) for the heavier punches; the 3/8-inch x 2-5/8-inch (model 53871) is the smaller-thread stud used with lighter knockout tooling. Match the stud thread to the punch and driver, not to the conduit size alone.

No. The self-centering punch aligns itself on the pilot hole, so there is no need to draw crosshairs or line up die alignment marks. That is the main time saver on a panel with a lot of holes to cut.

It includes a bearing with an electrogalvanized zinc-plate finish. The bearing is what lets the stud turn smoothly under load while the punch pulls through the metal, and the plating gives it corrosion resistance in a tool pouch or truck.

The 3/8-inch x 2-5/8-inch draw stud weighs 3.2 ounces, light enough that it adds nothing noticeable to a punch kit or pouch.