Slice 50303 Auto-Retractable Mini Box Cutter
- Zirconia ceramic blade, auto-retractable
- 2.44 inches long
- 9.93 g, glass filled nylon handle
- Gray, rubber and nylon body
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A tiny ceramic-bladed box cutter that retracts on its own for safer handling. Blade length and replacement blade details are not given.
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ASIN: B0CYF1R7HLModel: 50303Category: Utility & Work Knives
Overview
A packing table or mail desk that opens boxes all day is where this Slice mini box cutter belongs. A zirconia blade is housed in a glass filled nylon handle with rubber, and an auto-retract action returns the blade out of sight.
Auto-retract and a ceramic edge make it a lower-risk way to open parcels. Blade length, replacement blades and edge life are never mentioned.
Who it's for
Packers, warehouse staff and crafters who cut tape and cardboard all day get a small cutter that retracts. People cutting thick materials, or wanting a replaceable steel blade, should choose a standard utility knife.
Pros and cons
- Zirconia ceramic blade
- Glass filled nylon handle
- Very light body
- Blade length not given
- Replacement blades not described
- No lock-open option listed
Performance notes
Zirconia is a hard ceramic, so the edge resists wear but can chip if the cutter is twisted or dropped. Auto-retract means the blade returns inside the handle when pressure ends.
Specifications
| Brand | Slice |
|---|---|
| Model | 50303 |
| Dimensions & fit | |
| Item Length | 2.44 incheslower than 97% of 105 utility & work knives |
| Item weight | 9.93 g |
| Construction & materials | |
| Blade Material | Zirconia |
| Handle Material | Glass filled nylon |
| Material Type | Glass filled nylon, rubber, zirconia |
| Color | Gray |
| Included components | |
| Included Components | Mini Box Cutters |
| Unit Count | 2 Count |
| Other details | |
| Handle Type | Auto-retractable |
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Frequently asked questions
Is the Slice mini cutter a steel utility knife?
No. The blade material is zirconia, a ceramic, in an auto-retractable handle.
Does the Slice mini box cutter retract on its own?
Yes. The product style is listed as auto-retract and the handle type as auto-retractable.
Can I change the blade on the Slice mini box cutter?
Blade replacement is not described in the listing.