Crafters 4-Inch Hot Knife Cut foam with surgical precision! 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. Note: this listing DOES NOT include the required power supply. If you need a power supply, check out our money saving Crafters Kits. Cutting dense foams? Bigger projects? Choose our faster cutting 3-Inch Hot Knife (We have 5 hot knives to choose from.) For a comparison of Hot Knives, click here To see foam projects made using this tool, Click Here. Includes: 4-Inch Hot Knife Printed Instructions Please Note: This tool does not come with a power supply. Power supply sold separately - choose from the Crafters Power, the Multi-Heat or Variable-Heat Pro Power Stations, or a money-saving kit.   Features: Convenient thumb-switch on the comfort-grip handle 6 feet of power cord Starts cutting within seconds Cuts continuously (unlike cheap knock-offs that overheat in minutes) Round blade changes direction easily Made with care in the USA   Used For: Foam decorations Sign making Architectural models and so much more . . . To see foam projects made using this tool, Click Here.   Tech Specs: Blades are replaceable at our factory This tool needs to be plugged into the Crafters Power Supply, Multi-Heat or Variable Heat Pro Power Stations (not included) The Hot Knife PDF page has more pictures and details.    Videos:

Debbi , 08-15-2014

This is a fun way to add cracks and other details into the foam also can cut the edges well

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Sandy, 09-03-2015

I use this tool in making Christmas Village displays. It cuts through 2 inch foam like it was butter, and is especially handy when cutting out holes in the center of a sheet of styrofoam. The shorter length (vs. the 8 inch version) allows for easy maneuvering to create details using either the side or tip of the heated rod.

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Steve Ross, 03-23-2016

I own just about all the hotwire items. Out of all the items this one is probably my favorite. Because it is my favorite it got used the most. The one flaw I found is that it can bend and break at the base of the wire and it is not a replaceable part. Therefore renders the product useless at that point.

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Madelyn Ianniciello, 09-30-2017

This is the best to cut thru foam with precision.

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Robert Heidebrecht, 05-25-2018

Great little tool. Just finished working on a set for the camp I work at and it is perfect to use along with the right angle mount that keeps my cuts pretty close to 90 degrees.

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Sharon Calvert-McKee, 07-16-2018

I recently ordered the 4-inch hot knife, and I am not disappointed. I used the knife to put holes through thick foam board, and it worked great. I look forward to doing sculpting with it as well.

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Gary F Felkins Sr, 08-01-2018

Works great!

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Dave Schultz, 11-07-2018

Works awesome!

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Jay Williams, 02-18-2019

After destroying a 4" craft knife, I bought a 6" hot knife kit. The 6" knife works beautifully for very heavy cutting and carving.

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Jay Williams, 03-24-2019

I have a bigger Pro Knife, but find this one is better for situations that require a stiffer blade.

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Steven Wesolowski, 12-14-2021

Purchased the 4 inch hot knife kit. Started to use the knife to cut through 1.5" styrofoam. The thin round steel blade which heats up was extremely flimsy at its base where it was crimped into the base of the unit. I knew right of way that this was not going to holdup for long once I started to use it. I had to continuously bend the hot steel blade to straighten it out. Within 15 minutes of use the thin round blade broke apart exposing the thin heating wire. That was the end of the hot knife. It would appear that someone might of deliberately bend the thin round steel tube at this base to weaken the hot cutting blade. Very disappointed.