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Deli Heavy Duty Utility Knife SK5 Steel 9mm/18mm Box Cutter
Deli Heavy Duty Utility Knife SK5 Steel 9mm/18mm Box Cutter
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Deli Heavy Duty Utility Knife – SK5 Carbon Steel Box Cutter
Meet your go-to cutting companion for every job around the workshop, warehouse, or home. The Deli Heavy Duty Utility Knife features razor-sharp SK5 carbon steel blades available in 9mm and 18mm sizes, plus an auto-retractable design that keeps you safe between cuts. Whether you're slicing through cardboard cartons, packaging tape, plastic wrap, or craft materials, this box cutter delivers clean, precise cuts every single time.
Why Choose the Deli Utility Knife?
- SK5 High-Carbon Steel Blade: Stays sharper longer than standard blades — less frequent replacements, more consistent performance.
- Auto-Retractable Safety Mechanism: Blade retracts automatically when not in use, dramatically reducing accidental cuts on the job.
- 9mm & 18mm Blade Options: Choose the blade width that suits your task — 9mm for precision work, 18mm for heavy-duty cutting through thick materials.
- Ergonomic Black Handle: Non-slip grip design keeps the knife firmly in your hand, even during extended use or in demanding conditions.
- Durable Build Quality: Engineered to withstand heavy-duty use in warehouses, packaging facilities, workshops, and home environments.
- Lightweight & Compact: Easy to carry in a pocket, toolbox, or work belt — always ready when you need it.
Perfect For:
- Cutting cardboard boxes and cartons
- Opening packages and parcels
- Arts, crafts, and DIY projects
- Warehouse and logistics work
- Carpet cutting and flooring installation
- Scoring drywall, foam, and plastic sheeting
Product Specifications
| Brand | Deli |
| Blade Material | SK5 High-Carbon Steel |
| Blade Sizes | 9mm / 18mm |
| Mechanism | Auto-Retractable |
| Handle Color | Black |
| Country of Origin | Made in Mainland China |
Safety Information
Always engage the blade lock or allow the auto-retract to fully close before setting the knife down. Keep out of reach of children. For additional safe tool handling guidelines, visit the U.S. Consumer Product Safety Commission (CPSC) Tool Safety Resource.
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Learn more: Utility knife
Frequently Asked Questions
Q: What is SK5 carbon steel and why does it matter for a utility knife?
A: SK5 is a high-carbon steel alloy known for its excellent hardness, edge retention, and durability. In a utility knife, this means the blade stays sharp through prolonged use, requires less frequent blade changes, and delivers consistently clean cuts through cardboard, plastic, foam, and other materials.
Q: How does the auto-retractable mechanism work on this box cutter?
A: The auto-retractable mechanism automatically pulls the blade back into the handle when you release pressure or are not actively cutting. This significantly reduces the risk of accidental cuts, making it a safer option compared to standard fixed or manual-lock utility knives.
Q: Can I use both 9mm and 18mm blades in the same knife?
A: The 9mm and 18mm blade sizes correspond to different knife models within the Deli range. Please ensure you select the correct blade size variant for your knife body. Replacement blades should always match the size of your specific model.
Q: Is this utility knife suitable for heavy professional use?
A: Yes! The Deli Heavy Duty Utility Knife is built for demanding environments including warehouses, packaging facilities, construction sites, and workshops. Its SK5 blade and robust handle construction are designed to handle repetitive, heavy-duty cutting tasks reliably.
