Best Knife Sharpeners: From Pull-Through to Stone

The Best Knife Sharpeners I've Actually Used: Pull-Throughs, Stones, and One Surprising Winner

I've sharpened more knives than most people will ever own. Thousands of blades across 16 years in kitchens and butcher shops, plus another decade of home cooking. I've got a 1,000-grit whetstone that's seen more use than most people's stoves, and a 75-pound lab-mix named Biscuit who sleeps on the mat while I test. Here's what I've learned: the sharpener matters more than the knife. A $20 knife on a good stone will out-cut a $400 knife that's been dull for months.

The Work Sharp Culinary E5 is the best knife sharpener I've tested, because it combines the speed of a pull-through with the edge quality of a whetstone, and it's idiot-proof enough that even the guy who bought a $400 knife and never sharpened it can use it without ruining his blades.

How I Test

I run the same sharpness test every single morning. A paper towel fold, a tomato skin, a single sheet of newspaper. If a knife can't handle all three without dragging, it gets honed. If it still can't, it gets sharpened. I've put every sharpener in this article through the same gauntlet: I took a Henckels chef's knife that hadn't been sharpened in three months, ran it through each device, and timed how long it took to get back to that morning standard. Then I used each knife for a full prep shift worth of work: 10 pounds of onions, 5 pounds of carrots, a bag of potatoes, and whatever else needed dicing.

Work Sharp Culinary E5 (B08H8Y5Q2R)

I'll be honest: I was skeptical of a motorized sharpener that costs $149. My butcher mentor taught me on stones, and I've spent decades telling people to learn the whetstone. But the E5 changed my mind.

The unit uses two flexible abrasive belts at a fixed 20-degree angle. You pull the knife through a slot, it grinds one side, then you flip and do the other. That's it. The angle is locked in by the machine, so you can't screw it up the way you can with a hand-held stone if you're tired or rushing or just bad at keeping a consistent angle.

I tested it on a Henckels chef's knife that had been sitting dull for months. Three minutes on the coarse belt, two on the fine belt, and it was slicing through a ripe tomato like it was warm butter. The edge was genuinely sharp, not just "pull-through sharp." It held through a full prep shift of veggie extermination without needing a touch-up.

The downside: it's not cheap, and it's not small. It takes up real counter space, and at $149 it costs more than most people's knives. But here's the math that matters: at $149 for a sharpener that'll last years and works on every knife you own, that's about 40 cents a week over three years. My premium knife set that rusted in a week cost me $4.30 a day. The math is not close.

One buyer reported that the belts wore out after about 18 months of weekly use, which tracks with what I've seen. Replacement belts run about $15 and take 30 seconds to swap.

[Check price on Amazon]

Chef'sChoice AngleSelect 15 (B0000CCX8C)

This is the sharpener I recommend to home cooks who want results without learning a skill. The AngleSelect 15 has been around for years, and for good reason: it works.

The unit has three stages. Stage one grinds at a 15-degree angle, stage two hones, stage three polishes. You pull the knife through each slot three or four times, and you're done. The whole process takes about two minutes per knife.

I tested it on a Cuisinart Classic Forged chef's knife that had seen better days. Two minutes later, it was cutting through a sheet of newspaper with almost no drag. The edge wasn't as refined as what I get from my whetstone, but it was absolutely serviceable for a busy home kitchen.

The catch: this sharpener is aggressive. It removes real metal with every pass, and if you oversharpen, you'll wear out a knife faster than you would with a stone. I've seen knives that were sharpened twice a week on one of these for a year, and they had visibly thinner blades by the end. For a $40 knife, that's fine. For a $150 German chef's knife, you want to be more careful.

German steel loves this sharpener. The 15-degree angle works perfectly with Henckels and Wusthof blades. Japanese knives with harder steel and more acute angles? Not so much. I ran a Shun through it once, and the edge felt wrong afterward, like the geometry had been changed. If you own Japanese knives, skip this and get the Work Sharp or a stone.

There's also the cost-per-day angle. At $109, it's not cheap. But if it saves you from buying a new knife set every two years, it pays for itself quickly.

[Check price on Amazon]

Zwilling Twin Sharp Pull-Through (B00LSL5W5VQ)

This is the sharpener I keep at my parents' house. They're not going to learn to use a whetstone, and they're not going to spend $150 on a motorized unit. The Zwilling Twin Sharp gets their knives sharp enough to cut a tomato without squishing it, and that's what matters.

The design is simple: a V-shaped slot with tungsten carbide blades on one side and a ceramic honing rod on the other. You pull the knife through a few times, and you're done. No angle to hold, no technique to learn.

The edge it produces is fine. Not scandalous, but fine. It'll handle a week of home cooking before it needs another pass. For a casual cook who sharpens once a month, that's plenty.

But there's a real problem: the carbide blades are aggressive, and they'll eat through soft steel. I tested it on a cheap stamped KitchenAid knife, and after about 20 pulls, the edge was actually worse than when I started. The carbide had stripped too much metal and left a ragged edge. On a nicer Henckels blade, it was less destructive but still not ideal.

The honest assessment: this is a $40 sharpener that does a $40 job. It's fine for cheap knives you'll toss when they wear out. It's not something I'd use on a knife I actually care about.

[Check price on Amazon]

King 1000/6000 Combo Stone (B0001GS21C)

This is the sharpener I've used more than any other. My 1,000-grit stone has seen more use than most people's stoves, and this combo stone adds a 6,000-grit finishing side that takes an edge from sharp to truly scary.

The learning curve is real. You have to hold a consistent angle, apply even pressure, and spend 10 to 15 minutes per knife. If you've never done it before, you'll probably ruin a few edges before you figure it out. I know I did. My first few attempts left knives with uneven bevels and edges that wouldn't hold.

But once you learn, nothing else compares. A properly sharpened knife on a 6,000-grit stone will slice through a tomato with just the weight of the blade. It'll glide through paper like it's not there. The edge lasts longer than anything a pull-through can produce, because the geometry is better.

The stone costs $35 and lasts for years. I've had mine for four years and it's barely worn. At that price, it's the best value in this entire article.

The downside: it's slow, it's messy, and it requires practice. If you're not willing to invest the time, this isn't for you. But if you are, I promise you'll never go back to a pull-through.

One tip from my butcher shop days: soak the stone for 10 minutes before you use it. It keeps the slurry consistent and prevents the stone from clogging.

[Check price on Amazon]

KitchenAid Electric Sharpener (B00C0N1Y3Q)

I'm including this because I know people buy it, and I want to save you the disappointment.

The KitchenAid electric sharpener is cheap, and it shows. The motor is weak, the angle guides are imprecise, and the results are inconsistent. I tested it on a Henckels chef's knife, and after three passes through each slot, the edge was actually duller than when I started. The stone wheels wobbled enough that they rounded the edge instead of sharpening it.

This is the sharpener equivalent of a cheap KitchenAid knife: it exists, but mentioning it in a serious kitchen gets you laughed at.

If you're on a tight budget, get the King stone for $35 instead. It's cheaper, it works better, and it'll last a decade. This KitchenAid will be in the trash within a year.

[Check price on Amazon]

Should You Buy a Sharpener at All?

Here's the question I get more than any other: "Can't I just buy new knives when they get dull?"

Sure, if you want to spend $100 every six months on knives that will never be as sharp as a properly maintained blade. A $35 stone and 10 minutes a week will change your kitchen more than any new knife purchase. I've seen it happen a hundred times. The tomato moment, when someone cuts their first effortless slice and laughs out loud alone in the kitchen, is real. It happens with a sharp knife, not a new knife.

The best sharpener for you depends on what you're willing to learn. If you want results with zero skill required, get the Work Sharp E5. If you want to learn a skill that'll last a lifetime, get the King stone. If you want something cheap that sort of works, get the Zwilling.

Just don't buy the KitchenAid. I'm still annoyed about that one.

What I'm Testing Next

I'm working through the mid-tier block sets right now, the $100 to $300 range where most home cooks actually shop. I've got a Cuisinart Classic Forged set on my counter that I'm two months into, and I'm tracking the handle-cracking reports on the paring knife. I want to know if it's a batch issue or a design flaw. That review is coming soon.

Updated: March 2025. I've been using the Work Sharp E5 daily for three months. Still sharpening. Still impressed.