Knipex 90 20 185 Cutter for Flexible Hoses and Plastic Conduit Pipes

The Knipex 90 20 185 PlastiCut is a professional-grade tool specifically engineered for the precise cutting of thin-walled plastic pipes, protective conduits, and various rubber or fabric-reinforced hoses. Designed to handle materials with an outer diameter of up to 25 mm, this cutter utilizes a unique trapezoidal blade that penetrates the material to create two clean, right-angled edges simultaneously. By cutting from the inside out, it prevents the material distortion often associated with standard shearing tools, ensuring high-quality results without the need for subsequent deburring or finishing.

Advantages

This cutter offers significant operational benefits through its specialized blade geometry, which requires minimal physical effort from the user. The trapezoidal design ensures that force is applied efficiently, allowing for smooth, clean cuts even on reinforced materials. The tool is constructed from shock-resistant, glass-fiber-reinforced plastic, providing a lightweight yet durable body that withstands demanding work environments. Furthermore, the inclusion of an integrated opening spring reduces hand fatigue during repetitive tasks, while the locking device ensures safe storage when the tool is not in use. The blade is fully replaceable, extending the overall service life of the instrument.

Suitable for

• Cutting thin-walled plastic protective conduit pipes
• Trimming rubber hoses, including fabric-reinforced types
• Professional electrical installations requiring precise pipe sizing
• Plumbing tasks involving flexible plastic tubing
• General maintenance work on compressed air lines

When it may not be suitable

This tool is strictly designed for plastic and rubber materials. It is not suitable for cutting metal pipes, rigid metallic conduits, or any form of electrical cables, as these materials can damage the blade and compromise the tool's performance.

Key specifications

• Maximum cutting capacity: 25 mm diameter
• Blade type: Replaceable trapezoidal blade
• Tool body material: Glass-fiber-reinforced plastic
• Weight: 172 g
• Dimensions: 185 x 70 x 25 mm
• Features: Integrated opening spring and locking pawl

How to use

To operate the cutter, place the hose or pipe into the wide, half-round support, ensuring the material is positioned at a right angle to the blade. Squeeze the handles firmly to initiate the cut; the trapezoidal blade will penetrate the material and guide the cutting process radially. The integrated opening spring will automatically push the handles apart once pressure is released, preparing the tool for the next cut. Always ensure the locking device is engaged when transporting or storing the tool to protect the blade and the user.

What to consider before purchase

• Verify that the material diameter does not exceed 25 mm
• Ensure the material is made of plastic or rubber, not metal
• Consider the frequency of use, as the blade is replaceable for long-term maintenance
• Check that the application does not involve cutting electrical cables

Usage recommendations

For optimal performance and longevity, keep the blade clean and free of debris. If the cutting quality diminishes over time, replace the blade with an original Knipex spare part to maintain the precision of the tool.