Proto Single Puller 3-Way Yoke, Clean Hole Punch Die for Panels and Enclosures, Knockout Tool Part for Electricians and Panel Builders, Pro Grade Die for Fast Clean Holes

Proto Single Puller 3-Way Yoke, Knockout Draw Stud
✔️ Single knockout draw stud, Panel and Box Work, Pro Electrician Use

The Proto Puller 3-Way Yoke is a knockout or punch die for making clean holes in sheet metal, panels and enclosures. Electricians use it to punch holes in boxes, panels and enclosures for conduit and fittings. This listing is for one single item.

✅ Brand: Proto
✅ Mfr part number: J4255B
✅ Product type: Knockout Draw Stud
✅ Pack size: Single, 1 piece

💡 What's the difference between conduit size and actual knockout size?

Knockout sizes are listed by trade size, not actual diameter.

• A 1/2 inch conduit knockout is about 7/8 inch across.
• Always match the punch to the trade size of your fitting.
• Metric punches follow sizes like M20 and M25 for cable glands.

Grab the Proto Puller 3-Way Yoke and get the job done right.