Crafters Hot Knife Kit - #K11/K11S


$34.95


Market Price: $54.85
SKU: K11/K11S
Weight: 0.70 lbs

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Crafters Hot Knife Kit

Plunge, slice, and dice foam like magic!

Cut foam with surgical precision using the world's most accurate hand held foam cutter. The thin round steel blade cuts Styrofoam and white beaded EPS foam cleanly in any direction like magic.

Always sweeping up those messy foam beads? Put that time back into your art and add this hot wire cutter to your foam craft supply tool box today.

Cutting dense foams? Bigger projects?
We also make a 6" Pro Hot Knife, an 8" Pro Hot Knife and an Industrial Hot Knife

For a comparison of Hot Knives, Click here.

To see foam projects made using this tool, Click Here.



Includes:

  • Choose between the 3-Inch and 4-Inch Hot Knife

  • Crafters Power Supply

  • QR code to an instructional video

  • Sample Patterns

  • Printed Instructions

 

Features:

  • Convenient thumb-switch on the comfort-grip handle

  • 12 feet of power cord

  • Starts cutting within seconds

  • Cuts continuously (unlike cheap knock-offs that overheat in minutes)

  • Round blade changes direction easily

  • Made and supported in the USA

 


Used For:

  • Foam decorations

  • Sign making

  • Architectural models

  • and so much more . . .

  • Cutting Art and Sign Foam, other XPS foams,

  • Equipment case foams like Armor Foam and some polyethylene foam

  • RC airplane foams: Blueboard and polypropylene foam

To see foam projects made using this tool, Click Here.

 

Tech Specs:

  • Blades are replaceable at our factory

  • .04-inch diameter blades

  • Durable yet lightweight ABS plastic, brass, and stainless steel construction

  • Also plugs into our Multi-Heat and Variable-Heat Pro Power Station

  • Crafters Power Supply can also be used with the Sculpting Tool and Engraving Tools

 


Videos:



 

Can this knife be used on \

Yes, both the 4-Inch and 3-Inch Hot Knives will cut the polyethylene Noodle Foam very nicely. The 3-Inch Hot Knife will cut better because it gets hotter.

Many foams, especially polyurethane foams, give off toxic fumes when cut with heat, so always check with the manufacturer of the foam you want to cut to make sure there are no health or safety hazards when cutting their foam with heat.

Average Customer Rating:


3 Most useful customer reviews
AK
May 24, 2025
This customer purchased the item at our site.
Bought this to build a custom cake stand. I'd been using an electric knife to cut custom cake drums but this is SO much faster and creates a much smoother edge. The knife would always bog down after a few inches into the cut. Very happy! Anna Kellogg
Terry Moore
Dec 14, 2024
This customer purchased the item at our site.
Around 1987 we started to collect Dept. 56 porcelain houses and accessories and at Christmas made village displays on a 4 by 8 platform in our living room. Around 1990 (we do not know the exact year) we bought the Hot Wire Foam Factory cutting knife to carve out some platforms from Styrofoam for a few of the houses to set on and to create some small hills that we covered with white flannel and artificial snow to make it look like a snow scene. My wife also used it to carve out Styrofoam to insert artificial flowers in to make floral arrangements for our house decorations. She also used it a few times to cut Styrofoam to make platforms for some Easter decorations using Dept. 56 Easter village accessories. Just about every year my wife uses it to cut out Styrofoam to make or remake one or two floral decorations for our house. The 4 inch Hot Wire Foam Factory cutting knife finally broke a couple of years. It could have broken because the knife was not hot enough and was forced through the Styrofoam. This year she wanted to replace it so we went on line and to our surprise the Hot Wire Foam Factory was still being made so we contacted you to see if a new cutting knife could still be used with our old Hot Wire Foam Factory variable power supply. We were told that a new cutting knife would work with it. We still have the VCR tape that came with the original set but we no longer have a VCR that works.
Terry Moore, St. Louis, MO
gerald wiegler
Dec 15, 2018
Fantastic company and great product for cutting Styrofoam.
Note: Will not cut foam insert of pelican cases.
(Please Note: The 3-Inch Knife will reportedly cut Pelican Case Foam, which is a polyurethane, but the fumes are toxic)

Testimonials