Netafim 7mm Punch for .400 Fittings (PPPUNCH-7)

A quick guide to cutting clean cores with your spring-loaded punch.

Step 1: Secure the Tubing
Place your 3/4" or larger poly mainline tubing on the ground or a stable surface to prevent it from rolling away when you apply pressure.

Step 2: Press and Cut
Place the cutting edge of the punch firmly against the tubing wall. Push straight down, using a careful twisting motion back and forth until the blade cuts completely through the plastic.

Step 3: Eject the Core
Pull the punch out of the hole. Before making your next cut, press the spring-loaded thumb lever down to eject the plastic core that is stuck inside the cutting tip.

Step 4: Insert the Fitting
Immediately push your .400 barbed fitting or takeoff valve into the freshly cut hole until it snaps securely into place.

During my spring garden expansion, why must I eject the core from the Netafim 7mm Punch before my next cut?
You must eject the core because failing to do so will jam the hollow cutting tip. A jammed tip will crush and tear the tubing on your next attempt instead of cutting a clean hole.

Spring installations often involve dozens of quick connections. The spring-loaded lever on the Netafim 7mm Punch ensures you never have to stop and manually dig a plastic plug out of the blade, keeping your workflow incredibly fast.

Can I use the Netafim 7mm Punch on 1/2-inch mainline tubing?
We do not recommend using a 7mm punch on standard 1/2-inch poly tubing. Removing a 7mm core of plastic structurally weakens the narrow pipe, leading to splits and blowouts under pressure.

This large punch is intended specifically for 3/4-inch, 1-inch, or larger mainline tubing capable of safely accommodating oversized .400 barbed fittings.

Will the Netafim 7mm Punch work for standard 1/4-inch drip emitters?
No, the Netafim 7mm Punch creates a hole that is far too large for standard 1/4-inch transfer barbs or point-source drip emitters. Those standard fittings will immediately blow out of a 7mm hole.

If you are installing standard emitters (like Woodpeckers or CETA drippers), you must use a standard punch that stretches a smaller hole, such as the Pocket Punch or Key Punch.

What do I do if I accidentally punch a 7mm hole in the wrong spot?
If you accidentally punch a 7mm hole in the wrong location, you must seal it using a specialized large goof plug. Standard 1/4-inch goof plugs will fall straight through a 7mm hole.

It is highly recommended to mark your insertion points with a marker before cutting to minimize mistakes, especially on expensive large-diameter mainline runs.