Midori cardboard cutter aluminum

A round cutter in disc format, crafted from aluminium with a ceramic blade by Kyocera. When closed, it fits comfortably into any pocket; when opened, the semi-circular shape sits securely and naturally in your hand. Designed for opening cardboard boxes, it works equally precisely on individual sheets of paper or as a letter opener.

Features

• Kyocera ceramic blade: Ceramic retains its sharpness significantly longer than steel and is completely rust-free — no tarnishing, no corrosion, even with frequent use in damp environments.
• Robust aluminium housing: The aluminium body is lightweight yet dimensionally stable. When closed, it fully protects the blade — and your fingers when reaching into a pocket.
• Semi-circular opening form: When fully opened, it creates an ergonomically curved grip shape that enables safe, controlled cutting through corrugated cardboard and multi-layered packaging.
• Ribbed outer edge: The textured surface gives your thumb purchase when guiding the cutter — even when your hands are damp from unpacking parcels.
• Magnetic back: The cutter adheres directly to metal surfaces — desk edge, refrigerator, tool holder. No searching through drawers, no misplacing and losing it.
• Compact format, 45 mm diameter: Smaller than a matchbox, heavier than it looks — the weight of the aluminium gives the tool a pleasant presence in your hand.

Use & Tips

• Opening boxes: The blade runs directly along the tape — with light pressure and a pulling motion, even sturdy shipping cartons open cleanly without damaging the contents.
• Letter opener: For paper envelopes, a single flat stroke along the edge is all that's needed; the ceramic blade cuts without tearing.
• Individual sheets: The blade is well-suited for separating perforated paper or cleanly cutting sheet edges — though the cutter is not a replacement for a ruler with cutter, but intended for freehand cutting.
• Cleaning: Do not clean ceramic blades with abrasive materials. A damp cloth is sufficient — the blade absorbs neither odours nor stains.
• Storage: The magnetic back makes it a permanent fixture on any desk. On a metal rail or the housing of a desktop computer, it remains always at hand.

For Tool Enthusiasts

Kyocera is regarded as one of the few manufacturers that make ceramic blades of industrial quality accessible for everyday use. The zirconium oxide ceramic used is, after diamond and corundum, one of the hardest cutting materials available — meaning blade hardness far exceeds that of conventional cutting steel. In practice, this means: no resharpening, no oxidation, no transfer of metallic odours or residues. The aluminium body is milled as a single piece, not assembled — therefore no gaps where dust or cardboard fibres can become trapped.

Technical Specifications