TAJIMA Utility Knife - 1 7-Point Rock Hard Snap Blade Box Cutter with Dial Lock & Rock Hard Blade - LC-650

If you are doing roofing, siding, flooring or anything besides cutting cardboard, this is the blade/knife you need.

good tool for doing insulation

Great matt knife!

Been using this type of knife for over 20 years. Couldn’t be more pleased. Thanks for this great design and function.

this is a great knife if you need a new sharp edge often and dont want to change blades, or need to cut thick stuff like 4 ridged insulation

This is a one-of-a-kind tool as far as Im concerned. These knives are tough as nails and will do tasks that would destroy a standard utility knife. Ive never broken one I just seem to lose one now and then. A truly great product.

We use the knifes for our work. They are the best knifes for cutting insulation.

These are amazing exclamation point I own about 12 different ones in my house shop and Exedra. Ive been using them for about 15 years this one that is pictured believe it or not is about 15 years old and its been used in my welding shop just about every day. The thing I love most about these, is the way you can cut 4 inch thick foam all at once or styrofoam all at once and you can snap the blade off to have a sharp blade every time you need it instead of having to change blades. The best thing about these is you can take some CRC brake clean and they clean up like their brand-spanking-new other than the scuffs and burn marks like you see on this one they clean up like their

Great to cut insulation, R-19 and double layer of R-13, if youre cutting R-38 you need to press the material. Overall you get precision cuts.

Great product. Bought this for a friend along with supporting blades as Ive had one for years and would not trade for anything Ive come across yet.