Utility Knife - Retractable Box Cutter Utility Knife for Cartons,Cardboard and Boxes, 5pcs Sharp Rust Proof Razor Snap Off Blades Set,Smooth Mechanism, Perfect for Office and Home Use

Using this to cut eva foam and hd foam for cosplay builds. Slices through 10mm hd foam very smoothly. I do hone the blade often so keeping it sharp does help. Very sturdy and well-built for my purposes.

Great knife! I buy a lot of razor knives because they usually are not quality. I bought one of these and it was so nice that I went back and ordered three more.

This is great however my first one broke not sure I’ll buy again ... worked for about ten blades then the blades detached .. not happy about that

cant figure it out instructions from China (hinese) I dont read cant make it work Junk in my mind

first one jammed replacement was no questions asked and works fine would buy again

Works well, sharp & strong blades, no complaints

Extra lock screw on the end is nice to have, but can be removed if it gets in the way.

It’s a sturdy knife but not intuitive to use at first pass. The instructions won’t help you unless you read Chinese. The advance mechanism doesn’t seem real reliable. I don’t know how a potentially dangerous item like this gets imported with only Chinese instructions. I’ll buy something else next time.