Utility Knife Painto Profi 18 mm, Breakaway Blade, Screw-Lock Handle (NOZ10040)

Handheld utility knife Painto Profi with an 18 mm breakaway blade and screw-lock handle is designed for precise cutting of paper, cardboard, film, carpet and light construction materials. The knife features a replaceable segmented blade that allows quick restoration of a sharp edge by snapping off worn segments, and a screw-tightening mechanism that secures the blade in position. The ergonomic plastic and metal body provides control and stability during repetitive trimming tasks in the workshop, on the construction site, or for DIY projects at home.

Advantages

The segmented 18 mm blade offers multiple cutting edges per blade strip, reducing downtime for blade changes. The screw-lock handle provides a robust mechanical fixation that prevents unintended blade movement and allows tool use in angled or forceful cuts. The compact, balanced design and textured grip improve handling and reduce hand fatigue during extended use. Blade replacement is straightforward and does not require special tools beyond the included screw tightening.

Suitable for

• Cutting paper, cardboard and packaging materials
• Trimming vinyl, plastic film and adhesive layers
• Precision cutting of carpet and flooring underlay
• Light-duty construction and renovation tasks
• Workshop, hobby and general DIY applications

Key specifications

• Blade type: 18 mm segmented (breakaway) blade
• Handle fixation: screw-lock mechanism for secure clamping
• Body: ergonomic combination of plastic and metal components
• Blade replacement: replaceable cartridge with snap-off segments
• Primary uses: cutting paper, cardboard, film, carpet and light construction materials

How to use

Loosen the screw-lock to open the blade clamp, insert a new segmented blade so that the desired cutting segment projects beyond the handle, then tighten the screw to secure the blade. For a fresh edge, snap off the dull segment along the scored break line using pliers or the built-in snap-off facility if present, taking care to protect hands and eyes from flying fragments. Use short, controlled strokes and maintain a stable cutting surface. When cutting thicker materials, perform multiple shallow passes rather than forcing a single deep cut.

Usage recommendations

Store spare blades in their original packaging and dispose of used blade segments in a rigid container. Wear appropriate personal protection — cut-resistant gloves and eye protection when snapping blade segments or cutting abrasive materials. Regularly inspect the screw-lock for tightness and replace blades at the first sign of chipping or deformation to ensure safe, accurate cutting.