Hot Knife Foam Cutting Tools

Hotwire Direct: Hot Knives Hotwire Direct: Hot Knife Blades Hotwire Direct: Hot Knife Accessories
Hotwire Direct: HW-1000-NB Hot Knife Expanded Polystyrene (EPS, Styrofoam™, Styropor™) Foam Cutter
HW-1000 Hot Knife foam cutting tool

Hotwire Direct: HW-1500 Hot Knife Super Groover ICF Foam Cutter
HW-1500 Super Groover Belt Pack foam cutting tool



A variety of blade options makes the hot knife hand held tools versatile. The hot knives are used in construction for cleanly cutting exterior insulation and finish systems (EIFS) boards, for cutting electrical box openings and utility access channels in insulated concrete forms (ICFs), and structural insulated panels (SIPs). The hot knives can also be used for cutting EPS foam for artwork, sculpting, packaging, and R&D applications.

The hot knife tools are made for cutting expanded polystyrene (EPS-white board) foam, Styrofoam™, Styropor™, and extruded polystyrene (XPS-blue and pink board) foam.

Common Hot Knife Features

  • Hot Knife heats and cuts in under 5 seconds
  • Straight blades are sharpened for precision cuts
  • Positive blade locking feature
  • Fast, clean cuts
  • Specialty steel blades (no warpage when hot)
  • Made in the U.S.A. to high quality standards

Hot Knife Foam Cutting in Action

Click below to view an artist using the HW-1000 Hot Knife to sculpt a dragon and coat it for a sign, or a job site where an ICF home is being prepared for electrical outlets using the HW-1500 Belt Pack Hot Knife.

HW-1500 Specifications

  • Comes with the HW-SLED
  • HW-SLED allows for pre-formed blades,
    custom shaped blades, and is detachable
    for use with straight blades
  • Variable temperature control
  • Blade in front for inside corners
  • Belt mounted power supply for easy jobsite use
  • Weighs under 10 lb. (4.53 kilograms)

HW-1000 Specifications

  • 16 setting temperature control
  • 10' (3M) twist-free rubber cord
  • Weighs under 1 lb. (.453 kilogram)
  • Handle will not overheat-uses solid state circuitry instead of a transformer




Hot Knife Options & Accessories

6" Groove Sled HW-SLED
For cutting channels or grooves up to 6" wide using our HW-1000 Hot Knife, and HW-1500 Belt Pack Hot Knife (included).

Click images below for larger view of Hot Knife Features and Accessories.

HW-HWB: Rigid Wire Shaping Tool Close-Up of Hot Knife Blade Attachment Assortment of Hot Knife Blades HW-SLED & HW-EBX4 (wire): Electrical Box Cutter HW-SLED: Hot Knife Sled for Box Cutter and Shaped Rigid Wire Profiles ITS 4033: Step-Up, Step-Down Transformer HW-Bag: Heavy Duty Carrying Bag





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