Knife Topex 17B128 snap-off blade 18 mm with metal rail — utility cutter

Topex 17B128 snap-off blade 18 mm with metal rail — utility cutter is a compact cutting tool designed for repetitive workshop and packaging tasks. The knife features an 18 mm segmented (snap-off) blade guided by a metal rail that ensures straight travel and improved blade stability. The mechanism provides secure blade retention and controlled retraction, allowing safe handling when cutting cardboard, paper, plastic film, carpet and similar materials.

Advantages

The metal rail increases rigidity and reduces blade wobble during cutting, resulting in more precise and consistent cuts. The 18 mm snap-off blade offers multiple fresh cutting edges that can be renewed quickly without changing the whole blade, maintaining cutting performance over extended use. The secure retention and controllable retraction mechanism minimize accidental exposure of the blade and improve operator safety. The compact form factor provides good balance between leverage and maneuverability for fine and coarse cutting tasks.

Suitable for

• Opening and cutting corrugated cardboard and packaging
• Trimming plastic film and shrink wrap
• Cutting carpet, linoleum and floor coverings to size
• Paper, cardboard crafts and workshop trimming
• General-purpose cutting in warehouses, workshops and retail

Key specifications

• Blade type: 18 mm segmented (snap-off) blade
• Blade guidance: metal rail for increased stability
• Body: compact handheld design for one-handed use
• Blade change: snap-off segments for quick edge renewal
• Retraction: controlled blade retraction and secure locking

How to use

Extend the blade incrementally to the required length, keeping only the minimum necessary segment exposed. Align the blade with the cutting line and apply steady pressure while moving the knife through the material for a clean cut. When a segment becomes dull, retract the blade, snap off the used segment along the designated break line, extend the next fresh segment and resume work. Always retract the blade fully and lock it when not in use.

Usage recommendations

Use the knife with appropriate personal protective equipment, such as cut-resistant gloves and eye protection where needed. For thicker or tougher materials, use multiple passes rather than excessive force to prolong blade life and maintain control. Store spare blades in their original packaging until needed and dispose of snapped-off segments in a secure sharps container or wrapped waste to prevent injury.