Retractable Utility Knife | 18mm Razor Sharp Box Cutter with 10 Blades

This retractable utility knife delivers clean, precise cuts through cardboard, cartons, and craft materials. The 18mm razor sharp blade slides smoothly, making it a dependable hand tool for everyday cutting tasks.

Whether you are opening packages, trimming paper, or working on detailed projects, this compact graphic knife offers the control you need. The metal blade stays sharp through repeated use, while the plastic handle provides a comfortable grip. Its simple retractable design keeps the blade safely stored when not in use.

Built for versatility, this box cutter handles a wide range of materials including cardboard, leather, tape, plastic, rope, foam board, and fabric. The included 10 replacement blades extend the life of the tool, so you always have a fresh edge ready. With a smooth sliding mechanism, you can extend and retract the blade with one hand, making your workflow faster and safer.

This utility knife is ideal for home, office, workshop, and warehouse environments. Its lightweight build and compact size mean it fits easily in a pocket or tool pouch. You get a reliable cutting tool that performs consistently without jamming or slipping.

Key Features and Benefits

- 18mm razor sharp metal blade that cuts through tough materials like cardboard and plastic with minimal effort

• Retractable blade design that slides smoothly for safe storage and quick access during use

• Compact plastic handle that feels comfortable in hand and reduces fatigue during long cutting sessions

• Includes 10 replacement blades so you always have a sharp edge available without buying extras

• Lightweight and portable build that fits easily into pockets, aprons, or tool bags for on-the-go use

Who Is This For

- Home users who need a reliable box cutter for opening packages and cutting cardboard

• Crafters and artists working with paper, foam board, fabric, or thin materials that require precise cuts

• Warehouse and retail workers who open cartons and break down boxes daily

• DIY enthusiasts and hobbyists looking for a simple cutting tool for home improvement or model building

Usage Scenario

Mark just received a large delivery of supplies for his home workshop. The boxes are sealed tight with thick tape, and he needs to open them quickly without damaging the contents inside. He reaches for this retractable utility knife, slides the blade out with a smooth push, and slices through the tape in one clean motion. The sharp blade cuts through the cardboard layers without tearing, and he retracts the blade safely before moving to the next box. After unpacking, he uses the same knife to trim down the cardboard for recycling. The whole process takes minutes, and the tool feels secure in his hand the entire time.

Micro Comparison

Unlike basic snap-off blade knives that can wobble or break under pressure, this utility knife uses a fixed 18mm blade that stays rigid during cuts. Many budget cutters have stiff sliding mechanisms that require two hands to operate, but this one moves smoothly with one hand. The included 10 replacement blades also give you better long-term value compared to knives that only come with a single blade.

Specifications

Blade Material: Metal

Handle Material: Plastic

Blade Width: 18 mm

Full Length: 15.5 cm / 6.1 in

Handle Length: 15 cm / 5.9 in

Blade Angle: ≤ 60 °

Lock: No

Spring Force: No

Type: Multi Knife

Package Includes

- 1 x Utility Knife

• 10 x 18mm Wide Blades

Why You Will Love It

You will appreciate how this knife makes everyday cutting tasks feel effortless. The sharp blade and smooth mechanism save you time and frustration, whether you are opening a single package or breaking down a stack of boxes. It is a simple tool that does its job well, and the included spare blades mean you are always ready for the next cut.

Questions and Answers

Question: Can this knife cut through thick cardboard boxes?

Answer: Yes, the 18mm sharp metal blade cuts through thick cardboard and corrugated boxes easily without tearing.

Question: Is the blade retractable for safe storage?

Answer: Yes, the blade slides back into the handle with a smooth mechanism, keeping it safely stored when not in use.

Question: How many replacement blades come with the knife?

Answer: The package includes 10 spare 18mm wide blades, so you can replace the blade when it gets dull.

Question: Is the handle comfortable for long use?

Answer: The plastic handle is lightweight and shaped to fit comfortably in your hand, reducing fatigue during extended cutting sessions.

Question: Can this knife cut materials other than cardboard?

Answer: Yes, it works well on paper, leather, tape, plastic, rope, foam board, fabric, and thin craft materials.

Question: Does the blade lock in place when extended?

Answer: This model does not have a lock. The blade stays in position during use but can be retracted easily when done.