Greenlee Single Die-Rd 20, 4Mm, Knockout Tool Part for Electricians and Panel Builders, Pro Grade Die for Fast Clean Holes, Handy Upgrade for Hydraulic and Manual Punch Drivers

Greenlee Single Die-Rd 20, 4 mm for Jobsite Work
✔️ Single knockout punch die, 4 mm, Pro Electrician Use

Meet the Greenlee Die-Rd 20, 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. You get one single unit with this order.

✅ Brand: Greenlee
✅ Mfr part number: 31129
✅ Product type: Knockout Punch Die
✅ Pack size: Single, 1 piece
✅ Size or length: 4 mm

💡 Can knockout punches cut stainless steel?

Some can, but you need the right punch and driver.

• Look for punches rated for stainless steel.
• Hydraulic drivers make thicker or tougher metal much easier.
• Keep punches sharp and lube the draw stud for clean cuts.

Add the Greenlee Die-Rd 20 to your kit and work smarter.