




🔪 Cut smarter, not harder — the mini utility knife that means business.
The Sheffield 12245 Mini Retractable Utility Knife combines rugged durability with precision control in a compact design. Featuring a 3-position blade lock, high-impact aluminum housing, and onboard storage for extra blades, it’s engineered for professionals and DIYers who demand reliability and comfort across diverse cutting tasks like drywall, carpet, and packaging. Lightweight yet tough, this tool fits seamlessly into your workflow, minimizing downtime and maximizing efficiency with every slice.





| Material | Aluminum |
| Brand | Sheffield |
| Color | Silver |
| Item Length | 3.5 Inches |
| Handle Material | Metal |
| Blade Material | Metal |
| Item Weight | 0.05 Pounds |
| Blade Length | 3.25 Inches |
| Style | Mini Retractable |
| Manufacturer | Great Neck Saw Mfg. Inc. |
| UPC | 076812122452 |
| Global Trade Identification Number | 00076812122452 |
| Part Number | 12245 |
| Item Weight | 0.8 ounces |
| Item model number | 12245 |
| Is Discontinued By Manufacturer | No |
| Size | 3.5 Inch |
| Power Source | Hand Powered |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Blade Edge | Straight |
| Included Components | Mini Retractable Knife |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Sheffield Limited Lifetime |
L**R
Great little knife
Great little knife, I use it all day long in my job. I like the fact the blade has multiple depth settings as the packages I open do vary quite a bit. Lightweight so you really don't even notice it in your pocket.
I**K
Perfect for my Key Chain
This is the most perfect little box cutter to have on your keys. It is super small and lightweight and is so helpful to have when you need to open boxes or cut things open on the go. It is super sharp and has an extra blade inside of it so that you can switch out the blade when it gets dull. I use this thing all the time and now I can't imagine not having it on my keys. Great product!
D**M
It works
It works and is a Godsend for being so small but sometimes the blade comes out, not the extra blade, but the blade you’re using. Not often but it does happen. I use it at work everyday so it gets a workout some of those days
R**N
Switched to inferior cutter
In early December 2024 I purchased a Sheffield Mini Utility knife and I liked it very much, It was well-made and worked well for opening boxes. Two weeks later I purchased another for my son. It was a different knife. The two halves did not fit closely together, the blade carrier was plastic instead of metal, and it used a different style blades. It was a piece of junk. I wrote to Sheffield and never received a reply.
J**R
I would highly recommend
Very nice little knife.. I use it to open amazing boxes with and other things of that nature!
J**R
Nice at first
It was a really nice knife at first but it kept falling apart in the screw kept coming out I can't put my back together and then eventually it fell apart when I didn't notice and I lost the inside blade also the screw
H**E
It's ok
It's ok, blade slide sticks A LOT and won't slide in or out very well
E**M
Highly Recommend!
Use every day. Great-sturdy and blade is sharp-opens boxes easily and the blade retracts-that is important-very important. Eom
Trustpilot
4 days ago
3 days ago