Sheffield 12119 Utility Knife, Quick Change Utility Knife Blades, Lock Back Release, Lightweight ABS Handle, Box Cutter with 6 Blades

I'm a building superintendent so tools are precious. It feels sturdy. Blades are sharp and easy to swap out. For basic cutting needs it does what it's supposed to. I use it mainly for sheetrock (drywall)/ceiling tiles and cutting window screens As soon as your current blade dulls, just flip the same blade and bam! New blade. Not to mention it has multiple blades in storage. I suggest buying a pack of utility blades (they come 100 a box I think) if you're doing bigger jobs that you're constantlycutting things. I bought one through my company for work and decided to personally buy one for my personal arsenal. That's it I guess lol

Excellent quality utility knife. Easy to fold. Holds razor blades firmly in place.

Best utility knife I've ever used good brand good quality

I got this for my workplace at the time; this knife is very good to cut cardboard boxes, plastic wrappers, papers ..etc. I would usually cut then fold and put it back into my back pocket. It is very easy to switch and replace blades. The blades are common ones not any vendor lock in brands. It says it supports these type of blades (12850, 12283, 12852). It even comes with a pack of blades stored inside the Knife, Total of 5 blades. I felt dumb at 1st, lols i did not know how to unlock the knife, basically you press down on the metal piece that has a groove at the back of the handle. Overall, very easy and compact design, would recommend it, price is kind of high, since i seen similar for less at Sears or Lowes, though I'm not sure if those are as good of quality, so shop around if you are looking to save. But if you want it from Amazon, then get this one =)

Absoutly love these. Been using them for yrs. Ive bought a few of these over the years to keep in different areas. Only issue ive ever had is the tiny screws that hold the clip on come loose. But only after a long time of use. I use mine dam near every day.And the extra blade storage rocks.

This is the Cadillac of utility knives. Blade storage is convenient and blade changing is a snap. The knife fits well in the contour of my hand and is easy to grip and apply pressure when making deep cuts. It folds and clips in compact and convenient place on my belt.Update 11/2016: I've had this knife for several years now. It has slid off of the roof a few times, been lost outside for a few months and found again, and used for cutting drywall. It has had a hard life. At this time the points of failure are 1. The thumb rest has detatched and 2. The mechanism that holds and releases the blade doesn't hold the blade so well anymore. So if you want a great looking and performing utility knife with blade storage for light duty use, this is the one. If you use your utility knife on a daily basis for heavy duty stuff, there are better constructed knives available.

Quality Razor box cutter

A friend of mine owned a hardware store and i used to purchase supplies and materials on a daily basis..One day he gave me a Great neck lock blade knife..when i first saw it, i said to myself that i didn't like it but out of respect for my friend i tried it,I am a handyman..i work every day either doing repairs or replacing something that was broken..there's not a day that goes by that i don't find the need to use my knife..i carry it with me all the time and weather it's cutting a piece of rope or opening a plastic package or opening a box,i also share it with people who say "anyone have a knife?"i find use for it 10-15 times a day..It has a clip that i clip to my pocket for easy access and that blue back flips up to be able to store 5 or 6 blades that i can replace in about 6 or 7 seconds without any tools..i rely on this knife..i've had one for over 6 yearsnow and i'am grateful for the gift and for being hipped to the knife..