Utility Knife Topex 17B428 with 18 mm snap-off blade

The Topex 17B428 Utility Knife with an 18 mm snap-off blade is a handheld cutting tool designed for general workshop and household use. It features a segmented disposable blade that allows users to snap off dull sections and reveal a fresh cutting edge quickly. The knife is intended for controlled cutting of materials such as cardboard, carpet, plastic and thin wood, offering a compact solution for routine trimming and precision tasks.

Advantages

The segmented 18 mm blade provides multiple usable cutting edges, reducing downtime for blade changes. The snap-off system permits safe removal of worn segments without tools, while the compact handle design offers secure grip and control during use. Blade replacement is straightforward, and the blade format is widely available, simplifying maintenance and ensuring consistent cutting performance.

Suitable for

• Cutting cardboard and packaging materials
• Trimming carpet and floor coverings
• Scoring and cutting plastic sheeting
• Light woodworking tasks with thin timber or veneer
• General workshop, DIY and household tasks

Key specifications

• Blade type: 18 mm segmented snap-off blade
• Tool type: handheld utility/box cutter
• Primary materials to cut: cardboard, carpet, plastic, thin wood
• Blade change method: snap-off segments and tool-free replacement
• Typical grip: compact handle designed for one-handed operation

How to use

Hold the utility knife with a firm, comfortable grip and align the blade with the cutting line. For scored or shallow cuts, apply light, steady pressure and make multiple passes if necessary to avoid overloading the blade. When a segment dulls, extend the blade to expose a new segment and break off the worn section along the scored line using the designated breaking area or a suitable hard edge as recommended by the manufacturer. Replace the blade when all segments are spent to maintain safe and efficient cutting.

Usage recommendations

Use appropriate personal protective equipment such as cut-resistant gloves and eye protection when cutting. Cut on a stable surface and keep fingers clear of the cutting path. Store the knife with the blade retracted and dispose of used blade segments in a puncture-resistant container.