Chef’sChoice Trizor XV Review: The 15 Degree Converter

The Chef’sChoice Trizor XV is an electric sharpener built around one job. It converts a 20 degree factory edge into a 15 degree triple bevel. That edge is more durable, and the machine does the job extremely well.

Three motorized stages do the work. Diamond abrasive handles the first two stages, and a stropping disc finishes the third. Chef’sChoice calls the whole system EdgeSelect.

Spring guides hold the blade at a fixed angle. That keeps the geometry consistent from the first pull to the last. The machine handles straight edge blades and serrated knives in the same housing.

The tradeoff is metal. Converting a factory edge down to 15 degrees grinds away a real amount of steel on the first pass. Owners who accept that tradeoff gain a sharper, longer lasting edge in return.

What the Trizor XV Actually Changes About Your Edge

Most factory knives ship with an edge close to 20 degrees per side. The Trizor XV moves that edge to 15 degrees per side, per the manufacturer. A narrower angle bites deeper into food and needs less pressure to cut.

The three stages build the manufacturer’s signature edge shape. Diamond abrasive shapes the first two facets, and a stropping disc finishes and polishes the third. The manufacturer describes the result as a modified arch shape rather than one flat bevel.

That shape aims to combine two things. One is a thin cutting angle. The other is an edge that survives regular kitchen use.

See the case for a 15 degree edge for the fuller argument on any knife, not just this one. It is simply the machine built to get you there without hand skill.

The first stage carries the heaviest workload. A full conversion from a 20 degree edge can take up to 20 pairs of pulls, per the manufacturer. A blade already near 15 degrees needs only 3 to 4 pairs, since there is little angle left to remove.

A fixed 15 degree machine is not for everyone. Our electric sharpener buying guide covers the wider field. It includes models with adjustable angles.

The Full Verdict on This Sharpener

Who It Suits and Who Should Skip It

This sharpener suits a mixed kitchen drawer. Your knives might be a blend of German chef knives, Asian style santokus, and a bread knife. One machine covers all of them at a consistent 15 degree angle.

It also suits anyone who wants sharp results without learning to freehand on a stone. There is no technique to practice beyond loading the slot correctly.

It skips a few groups cleanly. Single bevel traditional knives need careful, one sided use. Only one slot is correct, and using the wrong one changes the blade geometry for good.

Very hard Japanese steel and serrated blades with deep, narrow teeth are also a worse fit than the marketing suggests.

This machine is not built for everything in a knife block, either. The manufacturer does not list it as a fit for scissors, ceramic knives, or machetes and axes. Stick to standard steel kitchen knives and that stays a non issue.

Our step by step guide to using this machine covers the single bevel technique in full. It also covers normal daily touch ups.

Owner Reports: The Recurring Pattern

The complaint that shows up most often is noise. One independent reviewer measured the coarse stage close to 95 decibels. That is loud enough to plan around for repeated daily use in a small kitchen.

It is not dangerous for occasional use, just worth knowing before the first sharpen.

A second pattern involves the triple bevel claim itself. The manufacturer describes a gradual, multi facet edge shape. At least one independent review found the finished edge reads more like two visible facets in practice.

Both readings can be true at once. The third stage is a polish, not a distinct grinding facet.

A smaller but real pattern involves full flat ground knives. Some owners report a visible recurve line building at the shoulder after many resharpenings. The fixed angle keeps grinding the same spot every time.

That is a normal consequence of any fixed angle machine. It is not unique to this one.

Mistakes That Shorten the Life of This Sharpener

Skipping stage two on serrated knives is the most common mistake. The manual is explicit that serrated blades only need stage three. Five to ten pairs of pulls per side is typically enough.

Running serrations through stage two removes metal for no benefit. That metal does not grow back.

Stropping discs are the main consumable on this machine. Most owners get months to a year or more of normal use before a disc needs replacing, and a clean blade going in is what stretches that life.

Another mistake is running a knife that never needed a full conversion. A blade already close to 15 degrees only needs a handful of pulls per side. That is a much shorter routine than the full 20 degree conversion.

This is one model in a wider lineup. See the full Chef’sChoice model lineup for other angle options. It may fit your knives better than a single fixed angle machine.

Frequently Asked Questions

What angle does the Trizor XV sharpen to?

15 degrees per side, per the manufacturer, down from a typical 20 degree factory edge.

Can it sharpen serrated knives?

Yes. Use only stage three, and five to ten pairs of pulls per side is typically enough.

Will it work well on Japanese knives?

It works, but very hard steel and single bevel traditional knives need extra care. Single bevel blades use only one slot.

Does it remove a lot of metal?

On the first conversion pass, yes. Bringing a 20 degree edge down to 15 degrees takes real steel off, and that pass can run close to five minutes per knife.

How often do the stropping discs need replacing?

The manufacturer says months to a year or more under normal home use, longer if knives are wiped clean before every pass.

Is the triple bevel claim accurate?

Partly. The manufacturer describes a gradual, multi facet shape, and at least one independent review found the visible result reads more like two facets in practice.

For every other option in this category, see our full sharpening equipment library.