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Hot Wire Foam Factory

Pro Hotwire 8'' Hot Knife Only

Pro Hotwire 8'' Hot Knife Only

Regular price $49.99 USD
Regular price $0.00 USD Sale price $49.99 USD
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5 in stock

Pro 8-Inch Hot Knife

For Deep Cuts!

Are you a professional foam artist needing a fast yet clean-cutting foam carving tool? This versatile hot knife cuts 1.5x faster than the 4-inch model without losing detail. The thin round steel blade cuts Styrofoam, white beaded EPS foam cleanly in any direction like magic. Perfect for deep plunge cuts.

Need a different cut or lower price?
We have 5 hot knives to choose from.


  • 8-Inch Hot Knife
  • Please Note: This tool does not come with a power supply. Power supply sold separately (either the Multi-Heat or Variable-Heat Pro Power Station)



  • Convenient thumb-switch on the handle
  • Durable yet lightweight comfort-gripped handle
  • 6 feet of power cord
  • Starts cutting within seconds
  • Does not char the foam
  • Cuts continuously (unlike cheap knock-offs that overheat in minutes)
  • Round blade changes direction easily
  • Made with care in the USA


Used For:

  • Stage props and theatrical sets
  • Theme rooms
  • Sign making
  • 3D art
  • Foam armatures
  • and so much more . . .


Tech Specs:

  • .065-inch diameter blade
  • Blades are replaceable at our factory
  • Requires the Multi-Heat or Variable-Heat Pro Power Station (not included)
  • Pro Power Stations can also be used with the Freehand Router, 3-Inch Hot Knife, 4-Inch Hot Knife, 6-Inch Hot Knife, Sculpting Tool, Engraving Tools, and our four Scroll and 3D Tables.

The Hot Knife PDF page has more information.


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