Knipex Cutter X Utility Knife 90 10 165 Review: A Premium Take on the Snap-Blade Knife

Introduction

Knipex is best known for pliers, so an 18mm snap-blade utility knife wearing the Knipex name is an interesting arrival. The Cutter X (model 90 10 165) is an 18mm snap-blade utility knife, and at $32 with shipping on Amazon, it was by far the most expensive knife in a comparison set that included options from Fiskars, Stanley FatMax, Olfa, Milwaukee, and DeWalt, most of which cost $10 or less. That premium buys a genuinely different cutting experience, but not without trade-offs worth understanding first.

What the Cutter X Does Differently

The Cutter X uses longer snap-off blades designed to break off in sections as they dull. Many people, including plenty of tradespeople, run these blades at full length because a long razor edge in a controllable handle is genuinely pleasant to use. The downside is flex: push a long exposed blade deep into thick material, such as the breakaway foam inside a hard case, and the blade bends, producing uneven or slanted cuts.

Knipex addresses this with a sliding lever that extends a metal spine behind the blade, holding it rigid. With the spine out, flex is minimal and cuts stay far more predictable. The spine can also extend past the blade tip to act as a guard so you don’t drive the point into material, and it doubles as a safe place to apply thumb pressure when you want a shorter exposed blade without risking a cut thumb. It is a simple idea, but it changes how the knife behaves on deep cuts.

Build, Materials, and Handling

The housing is magnesium rather than the plastic or plastic-and-rubber construction common at lower price points. It feels solid, and the finish is attractive, though the sides are quite slippery. In practice this matters less than it sounds, since you normally hold the knife in the jimped grip area rather than by the sides. There is a lanyard hole, and the overall look and feel sit firmly in premium-tool territory.

One structural detail to note: the front seam near the blade line can be spread slightly under heavy downward pressure, even with the internal metal shield in place. Older knife designs, like the classic Stanley 99A, had the same weakness with a seam running right up near the blade, which newer designs have reinforced. The Knipex uses a standard clamp reinforcement with a single screw holding the mechanism at the rear. No trouble has surfaced with it so far, but it is the kind of detail that suggests a future revision could be sturdier.

Blade Storage and Spare Blades

At the back, the knife stores two extra blades in a plastic holder that feels on the flimsy side, held by small pressure wings. Anyone who has owned tools with similar snap-off wings knows they can break eventually, so the guess here is that a future version may use a more robust mechanism for the blade tray.

An interesting sourcing note: earlier versions of this style of knife, including those from other makers, used Japanese blades. The Cutter X partners with Lutz, a German blade company, pairing German blades with the Knipex name. The packaging says Knipex quality, though no country of origin is stated anywhere on the knife itself. Blade quality is genuinely good; the snap-off pieces and slicing feel compare favorably against a basic Stanley.

Blade Changes and Everyday Use

Blade changes work differently here. A blue button pushes up on an internal mechanism that releases the blade so it can slide out. It takes some getting used to, and a pair of pliers helps when removing a nearly spent segment, but the mechanism works well once you learn the alignment. Since long blades last longer between changes, you are not swapping them out nearly as often as with shorter-blade knives.

One notable omission: there is no built-in blade snapper. Most competing knives include some way to snap off dull segments, often a tool that pops out at the back. With the Cutter X, you grab pliers, wear eye protection, grip the segment ahead of the break line, and it pops right off. It works fine, but you need to carry pliers or work near them.

Things to Consider Before Buying

The biggest question is value. An Olfa costs roughly $10 or less, and this runs about $30 or more. On the other hand, a long rigid blade makes deep foam and packaging cuts far more predictable, and the spine mechanism is something no other knife in this class offers. The slippery magnesium sides, the lightweight plastic blade holder, and the missing snapper are the weak points. The price has also fluctuated: it was $29 earlier, but with around $20 shipping from overseas at the time, the total was higher.

Buying Advice

This is a premium, solid workhorse of a snap-blade knife, best suited to people who regularly cut deep into foam, packaging, or other thick material and will actually use the rigid-blade spine. If your cutting is mostly light cardboard work, a $10 classic will do the job, and the Knipex premium is harder to justify. If you value a long, controlled blade and a well-made housing, the Cutter X is one of the nicer snap-blade knives available.

Conclusion

The Knipex Cutter X 90 10 165 is a well-executed twist on the snap-blade utility knife, with a rigid-blade spine that solves a real problem and blade quality to match. Its flaws, a flimsy blade tray, slippery sides, and no built-in snapper, are minor in daily use but worth knowing about at this price. The more it gets used, the more it earns its place on the bench.