Irwin 10507695 Folding Fixed Blade Trapezoid Utility Knife

The Irwin 10507695 is a folding utility knife built for site use — compact enough to carry in a pocket, capable enough to handle the tougher cutting jobs that come up in a day’s work. Fitted with a trapezoid bi-metal blade and a 45° quick-change mechanism, this folding utility knife keeps things moving when you need a fresh edge fast, without fumbling around or putting the blade somewhere it shouldn’t go.

The 45° quick-change mechanism deserves a mention on its own. Changing blades on a standard utility knife usually means finding a coin, hunting for a screwdriver, or just giving up and carrying on with a blunt blade. The Irwin’s angled release system means you can swap in a new blade quickly and safely, one-handed if needed, which is exactly what you want mid-job rather than mid-faff.

What the Irwin Folding Utility Knife Brings to the Job

The bi-metal blade is a step up from standard utility blades. Bi-metal construction combines a harder cutting edge with a more flexible body, which means the blade resists snapping under load rather than shattering. This is particularly useful when cutting through tougher sheet materials, thick cardboard, carpet, rubber, or strapping — anything where a standard blade might give way under pressure. The three shatterproof bi-metal blades included with the knife are ready to go straight out of the box.

Alongside the blade, the knife includes a wire stripper built into the handle, which makes it a genuinely practical tool for electricians and multi-trade workers. The anchored belt clip keeps the knife securely on your belt or pocket without working loose over the course of a day, and the extended thumb ledge gives a more controlled grip when you’re making precise cuts or working at an angle.

Compact Build, Serious Use

The folding design keeps the blade protected when the knife is not in use, which matters for anyone carrying tools in a pocket or a crowded tool bag. Unlike a fixed open-frame knife, the Irwin folds away cleanly so you’re not catching a bare blade on your hand every time you reach in. The overall build is solid without being bulky — this is a knife you’ll actually carry rather than leave in the van.

This knife suits tradespeople across a wide range of work: electricians using the wire stripper, roofers and flooring installers cutting sheet materials, joiners and site operatives needing a reliable general-purpose blade to hand. At this price point, it performs well above expectations. The quick-change system alone puts it ahead of most knives in the same range, and the included blades mean you’re set up and working straight away.

If you want a folding utility knife that covers daily cutting needs without adding unnecessary bulk to the toolbelt, the Irwin 10507695 is a sensible, practical choice.