AMZCNC 3-Inch Conduit Punch and Die for Hydraulic KO Driver | 3/4-16UN Thread | Actual Hole 3.54 in

Meet the AMZCNC 3‑inch conduit punch and die, engineered to pair with hydraulic knockout drivers for precise conduit openings. This tool blends rugged construction with practical, shop‑friendly design, helping you create clean KO holes in a controlled, reliable way.

Designed to support everyday fabrication and electrical conduit work, the punch delivers consistent results when used with the right setup. While it is built for tough metal and composite materials, choosing the correct material and thickness ensures steady performance and a smooth cutting edge through the material at hand.

Key specs at a glance

• Conduit fitting size: 3 inches
• Actual punched hole size: 3.54 inches
• Required punching force: 10 tons
• Standard draw stud thread: 3/4-16 UN
• Punching thickness capacity: 1/8 inch steel (11 ga), 1/16 inch stainless
• Material and finish: hardened tool steel with a black oxide coating

What it’s made to handle

The tool is designed to punch through common metals and soft alloys, including steel, stainless steel, brass, copper, and aluminum when working with soft alloys. It also accommodates fiberglass and plastic in appropriate applications, expanding the range of possible conduit installations and knockouts.

Build quality you can feel

Made from hardened tool steel and finished in black oxide, the assembly emphasizes durability and wear resistance in demanding shop environments. This combination supports repeated use under normal maintenance and proper use scenarios, helping you maintain performance over time.

Practical use cases

• Electrical and mechanical installations requiring a precise conduit opening with a 3 inch fitting
• Fabrication setups where a 3.54 inch finished hole is needed in steel, stainless, or soft alloys
• Workshop projects that involve aluminum sheets, fiberglass panels, or plastic components requiring KO access

Note that this punch is optimized for soft alloys and recommended thickness ranges; avoid forcing the tool beyond its rated capacity to protect both the tool and the workpiece. Pair with proper safety gear and follow standard KO driver procedures to maximize control and accuracy.