Utility knife Irwin 10506544 with 18 mm snap-off blade, single-piece, blue/yellow

Irwin 10506544 with an 18 mm snap-off blade is a compact utility knife designed for workshop and construction tasks. The tool features a replaceable segmented blade that allows quick restoration of a sharp edge by snapping off the worn segment. The single-piece body in blue/yellow houses a self-locking blade adjustment and a removable end-cap for blade replacement and safe storage.

Advantages

The knife provides reliable blade retention through a self-locking adjustment mechanism, which secures the blade at the desired length during cutting operations. The segmented snap-off blade cuts a variety of materials and is simple to renew without tools. The removable end-cap enables safe access to the blade for replacement and disposal of used segments. Its compact, single-piece housing offers a balance of durability and low weight for everyday use.

Suitable for

• Cutting cardboard and corrugated board
• Trimming plastic sheets and films
• Carpet fitting and trimming
• General workshop and construction cutting tasks

Key specifications

• Blade type: 18 mm segmented snap-off blade
• Body material: single-piece durable plastic housing
• Blade adjustment: self-locking mechanism
• End-cap: removable for blade access and segment storage
• Color: blue and yellow
• Typical uses: cutting cardboard, plastic, carpet, general materials

How to use

Hold the knife firmly with the blade aligned to the cutting line and extend the blade to a suitable length using the slider; ensure the self-locking mechanism engages before applying pressure. For dull edges, snap off the used blade segment along the scored line to expose a fresh cutting edge, using the end-cap or suitable snapper if provided. Replace the blade by removing the end-cap and exchanging the segmented blade cartridge following the manufacturer's guidance, then reassemble and test the lock before use.

Usage recommendations

For safe operation, always cut away from the body, wear appropriate hand protection when necessary, and store the knife with the blade retracted. Use the correct blade length for the material to reduce bending and risk of breakage. Dispose of used blade segments in a puncture-resistant container.