Klauke SB-Matrize 25.4 mm Punch Die 50351648

Electricians and panel builders rely on the Klauke SB-Matrize 25.4 mm punch die when creating precise knockout holes in metal enclosures. This die is the female component of a knockout punch system, engineered to pair with a compatible draw stud and punch (sold separately). It produces clean, round 25.4 mm (1 inch) holes in materials such as mild steel, stainless steel, aluminum, plastic, and fiberglass. The die is made from hardened tool steel with a black oxide finish for durability and corrosion resistance. It is compatible with Greenlee hydraulic, battery, and manual punch drivers, including models 764, 767, 777, 7804, 7904, LS50L, LS60L, and LS100L. The die is precision ground to ensure burr-free holes, making it suitable for professional and industrial applications like electrical enclosures, control panels, junction boxes, and conduit knockouts.

Key specifications

• Product type: Punch die
• Punch shape: Round
• Punching diameter: 25.4 mm (1 inch)
• Material compatibility: Mild steel, stainless steel, aluminum, plastic, fiberglass
• Maximum material thickness (mild steel): 3.5 mm
• Maximum material thickness (stainless steel): 2.0 mm
• Construction material: Hardened tool steel
• Finish: Black oxide
• Compatibility: Greenlee hydraulic, battery, and manual punch drivers
• Component type: Die (female part)
• Application: Electrical enclosures, control panels, junction boxes, conduit knockouts
• Precision: Ground for accurate, burr-free holes
• Replacement part: Yes
• System: Knockout punch system
• Intended use: Professional/Industrial
• Drive type: Requires compatible draw stud and punch (not included)

Why choose it

The Klauke SB-Matrize 25.4 mm die is built for consistent performance in demanding environments. Its hardened steel construction and black oxide coating resist wear and corrosion, extending tool life. The precision-ground cutting edge delivers clean, round holes without burrs, reducing the need for secondary finishing. Compatibility with a wide range of Greenlee drivers offers flexibility across job sites and workshop setups.

Ideal use cases

• Creating knockouts in electrical enclosures and control panels
• Punching holes in junction boxes for conduit entry
• Fabricating panels from mild steel, stainless steel, or aluminum
• Professional electrical and metalworking applications

Good to know

This die is a replacement part and does not include the punch or draw stud. Ensure you have a compatible punch and driver before use. The maximum material thickness varies by material: 3.5 mm for mild steel and 2.0 mm for stainless steel.