TajimaUtility Knife - 1" 7-Point Rock Hard Magazine Snap Blade Box Cutter with Auto Lock & 3 Rock Hard Blades - AC-700S

I purchased this knife in the hopes that it would make cutting paper-faced fiberglass insulation less frustrating. By compressing the fiberglass with a straightedge with the paper face down and extending the blade out most of the way, I was able to easily slice through R21 insulation in one or two passes. The blade is thick enough that I never had a segment snap off unexpectedly, and when the tip got too dull to easily cut the paper, snapping off a segment solved the problem. I was able to easily cut the insulation, even after shortening the blade by three or four segments. I will never go back to using a regular utility knife for this job again.My only complaint is that the end cap, which retains the slide mechanism and spare blades and acts a the holder to snap off the blade segments, broke into three pieces the first time I dropped it from three feet onto concrete. Not surprising for a plastic cap, but I have never had any other utility knife break from dropping it. Hopefully, I can get a replacement cap from the manufacturer.

Just liked it. Solid for the work and self defense too.

Everyone likes to borrow my tool! I might need to get another.

Este producto es muy bueno para mí trabajo, lo uso mucho todos los días.

This is a strong, very sharp compact knife and it’s easy to snap off a dull edge and create a new sharp one.

Great knife! Very useful

Knife is great work really well on iso board and dens deck for roofing..

The best extendable knife there is!Extends and retracts quickly and effortlessly yet won't collapse when pushed hard( unlike the new Stanley extendo-knife). I mainly use it to through-cut (installed) drywall where i can't raise any dust. The lock on my old one failed after a few years of this kind of abuse and the tool now hangs in my personal Hall of Fame.Ichiban!, Tajima