Utility knife Proline 30315 — single-piece retractable cutter, general-purpose

Proline 30315 is a single-piece retractable utility knife intended for basic manual cutting tasks. The cutter combines a metal body with a trapezoidal blade that automatically retracts when the button is released, providing a simple mechanical safety feature. Designed for general-purpose use, this compact tool is suitable for work in workshops, warehouses and homes where a straightforward handheld cutter is required.

Advantages

The metal body offers durability for frequent handling and resists deformation under normal use. The retractable trapezoidal blade reduces the risk of accidental contact when not in use, and the single-piece construction keeps operation simple with minimal parts to maintain. Its compact size and straightforward sliding mechanism make it easy to operate with one hand.

Suitable for

• Cutting cardboard and corrugated board
• Opening packaging and shipping boxes
• Trimming tape and plastic strapping
• Light workshop and home DIY tasks

Key specifications

• Construction: single-piece handheld cutter with metal housing
• Blade type: trapezoidal utility blade
• Blade action: spring-assisted automatic retraction when button released
• Operation: manual sliding button for blade extension and retraction
• Primary uses: general-purpose cutting of paper, cardboard, tape and light plastics

How to use

Hold the metal body firmly in your hand and press the sliding button to extend the blade to the required cutting length. Make controlled cuts using steady pressure and a consistent angle appropriate to the material. Release the button after each cut to allow the blade to retract automatically into the housing for safer storage. Replace the blade according to visible wear or reduced cutting performance; follow safe disposal practices for used blades.

Usage recommendations

Use the cutter on a stable cutting surface and cut away from your body. Wear protective gloves if handling tougher materials or performing repeated cutting operations. Store the tool with the blade retracted and out of reach of children. Replace blades with compatible trapezoidal utility blades to maintain cutting efficiency.