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

Its heavy duty and I think it is made by the same people that make olfa knives. Everything is the same except it has clicks when retracting and a smooth grippy plastic handle. I think I like it better than olfa

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

I have owned this knife years ago but lost it, dont know why it took me so long to replace it because with this knofe there really is very little need for any other utility knife! and Im a contractor with 30 years experience.

The Tajima Tool Corp. Has created a well made, strong, retractable blade utility knife. Once set the blade length up to 3 will not slip. Ideal for box cutting, cutting dry wall or slicing 2 thick insulation. Some may object to having to turn the knob to tighten the blade position, but well worth the time to ensure a stable blade.

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.

Best utility knife! I had Dewalt knives for years and the plastic buttons kept falling off so I couldnt lock the blades and would have to buy a whole new knife. Even when it did lock, there were times the blade would slip in or out during spirited use. This one has a rubber knob thats easy to rotate to lock and unlock the blade. The lock is very secure.

Great product !!!

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

Performs as advertised.

I have been using the Tajima knives for at least the last ten years. I install EIFS and I cut a lot of Styrofoam, and these are the best.