Pro-1 Hot Knife – Heavy-Duty 5.5″ Solid Blade

Most Popular Professional Foam Cutting Tool

The Pro-1 Hot Knife is a heavy-duty, professional-grade foam cutting tool engineered for industrial, construction, and high-volume cutting applications. Featuring a solid 5.5″ stainless steel blade, this hot knife delivers fast, controlled cuts without the bending, warping, or downtime common with wire-based tools.

Originally introduced by TL Marshall Company in response to industrial demand, the Pro-1 remains one of the most trusted hot knives for serious work.

Built for Power, Precision & Durability

Unlike hot knives with detachable or wire blades, the Pro-1 uses a single-piece stainless steel blade that maintains rigidity under heat. This design allows for clean, accurate cuts and consistent performance across demanding applications.

The Pro-1 heats quickly and offers three adjustable temperature settings, giving you control for different materials and cutting depths.

Key Features & Benefits

• 5.5″ Solid Stainless Steel Blade
  Rigid blade will not bend or warp during use.
• Heavy-Duty Performance
  Designed for construction, industrial, and professional use.
• Fast Heat-Up
  Ready to cut in under 1 minute.
• Three Heat Settings
  Low, Medium, and High temperature control.
• Up to 750°F Operating Temperature
  Powerful enough for thick foam and dense materials.
• Efficient Cutting
  A single cut can open more than ¼″ wire channel.
• No Forced Cooldown
  Toggle power on/off in 15-second intervals to maintain a continuous workflow.
• Economical & Long-Lasting
  Built for repeated use with minimal maintenance.

Ideal Applications

• Cutting electrical boxes and beam pockets
• Creating electrical and plumbing channels
• Utility hole passes and insulation shaping
• Contouring architectural foam elements
• Freehand cutting of rigid and expanded foam

Technical Specifications

• Blade Length: 5.5″ (Solid Stainless Steel)
• Temperature: Up to 750°F
• Power: 130 watts
• Voltage: 110V
• Cord Length: 6 ft
• Heat Settings: Low / Medium / High

Usage Tip

To prevent overheating, toggle the power switch on and off at 15-second intervals during cutting, following manufacturer guidelines.