Cta Tools Single Metric Insert, M8-1.25, Handy Upgrade for Hydraulic and Manual Punch Drivers, Clean Hole Punch Die for Panels and Enclosures, Knockout Tool Part for Electricians and Panel Builders

Cta Tools Single Metric Insert, Knockout Punch Die
✔️ Single knockout punch die, Panel and Box Work, Pro Electrician Use

The Cta Tools Metric Insert is a knockout or punch die for making clean holes in sheet metal, panels and enclosures. It's a staple in electrical, controls and sheet metal work. This listing is for one single item.

✅ Brand: Cta Tools
✅ Mfr part number: CTA25089
✅ Product type: Knockout Punch Die
✅ 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 Cta Tools Metric Insert and get the job done right.