Sharp knives are the backbone of any kitchen—whether you’re a home cook whipping up weeknight dinners or a professional chef crafting culinary masterpieces. A dull blade isn’t just frustrating; it’s dangerous. Studies show that more kitchen injuries occur from trying to force dull knives through food than from sharp ones slipping. That’s why investing in a reliable knife sharpener isn’t a luxury—it’s a necessity. With so many options on the market, choosing the right one can feel overwhelming. From manual pull-through sharpeners to electric models with multiple stages, the choices are endless. But not all sharpeners are created equal. Some promise razor-sharp edges but leave blades chipped or uneven. Others are built like tanks but cost more than your entire knife set.
This guide is designed to cut through the noise and help you make an informed decision. Whether you’re comparing the Chef’sChoice 15XV and 1520 AngleSelect or simply looking for the best knife sharpener for your needs, we’ll walk you through everything you need to know. You’ll learn how to evaluate performance, build quality, ease of use, and long-term value. We’ll also highlight common pitfalls, budget considerations, and expert tips to ensure you get the most out of your purchase. By the end, you’ll have a clear understanding of what makes a great sharpener and which model aligns with your cooking style, budget, and expectations.
The knife sharpener market has evolved significantly over the past decade. Gone are the days when a simple whetstone or basic pull-through sharpener was your only option. Today’s models leverage advanced engineering, precision angles, and multi-stage sharpening systems to deliver professional-grade results at home. Brands like Chef’sChoice, Work Sharp, and Lansky have raised the bar with innovations such as diamond abrasives, adjustable angle guides, and even guided sharpening systems. Among these, Chef’sChoice stands out for its focus on electric sharpeners that combine speed, consistency, and ease of use. Their 15XV and 1520 AngleSelect models are two of the most popular in their lineup—each offering unique advantages depending on your needs. This guide will dive deep into both, helping you decide which one deserves a spot on your countertop.
What to Look for When Buying a Knife Sharpener
1. Sharpening Angle Precision
The sharpening angle is arguably the most critical factor in determining how well a knife will perform after sharpening. Most Western-style knives are sharpened at 20 degrees per side, while Japanese knives typically use a finer 15-degree angle. A sharpener that allows you to control or select the correct angle ensures your blades maintain their intended geometry and cutting performance. The Chef’sChoice 15XV, for example, features a 15-degree angle setting ideal for Asian-style knives, while the 1520 AngleSelect offers both 15° and 20° options, making it versatile for different knife types. Precision in angle selection prevents over-grinding, reduces wear on the blade, and extends the life of your knives.
2. Abrasive Material and Durability
The material used in the sharpening mechanism directly affects how effectively and safely your knives are sharpened. Diamond abrasives are among the hardest and most durable, capable of quickly reshaping even the dullest edges without overheating the blade. Both the 15XV and 1520 use 100% diamond abrasives in their first two stages, ensuring fast and consistent results. Ceramic rods, often used in finishing stages, help polish and hone the edge. Look for sharpeners that use high-quality, long-lasting abrasives—cheaper models may wear out quickly or damage delicate blades.
3. Number of Sharpening Stages
Multi-stage sharpening systems provide a more complete restoration of your knife’s edge. Typically, Stage 1 reshapes the edge with coarse abrasives, Stage 2 refines it with finer grit, and Stage 3 hones and polishes. The Chef’sChoice 15XV features three stages: two diamond-coated for sharpening and one ceramic for honing. The 1520 AngleSelect also has three stages but includes a patented “Angle Select” mechanism that lets you choose between 15° and 20° angles before sharpening. More stages generally mean better edge refinement, but they also increase complexity and cost. For most home cooks, a three-stage system offers the best balance of performance and simplicity.
4. Ease of Use and Safety Features
A sharpener should be intuitive enough for beginners yet precise enough for experienced users. Electric models like the 15XV and 1520 are generally easier to use than manual systems because they automate the motion and pressure. Look for features like non-slip bases, clear angle indicators, and ergonomic handles. Safety is also crucial—some sharpeners include guards or guides that prevent fingers from contacting the blade during use. The 1520’s adjustable angle selector is a standout feature that reduces user error, while the 15XV’s fixed 15° angle simplifies operation for those focused on Japanese knives.
5. Compatibility with Knife Types
Not all sharpeners work well with every knife. Serrated blades, ceramic knives, and specialty tools like scissors or pocket knives require specific mechanisms. The Chef’sChoice 15XV is optimized for straight-edged knives, particularly those with 15° angles, but lacks a serrated knife slot. The 1520 AngleSelect includes a dedicated serrated knife slot, making it more versatile for households with a mix of blade types. Always check compatibility before buying—using the wrong sharpener can ruin expensive knives.
6. Build Quality and Longevity
Durability matters. A sharpener made from cheap plastic may crack or warp over time, leading to inconsistent results. Metal components, reinforced housings, and sealed motors (in electric models) contribute to longevity. Both the 15XV and 1520 feature sturdy plastic bodies with metal internal components, but the 1520’s more complex mechanism may require more maintenance. Consider how often you’ll use the sharpener—frequent users should prioritize robust construction.
7. Noise Level and Maintenance
Electric sharpeners can be noisy, which might be a concern in quiet kitchens or shared spaces. The 15XV operates relatively quietly, while the 1520’s motor is slightly louder due to its dual-angle mechanism. Maintenance involves cleaning debris from the abrasive slots and occasionally replacing worn parts. Diamond abrasives last longer than steel or ceramic, but they still degrade over time. Check manufacturer guidelines for replacement schedules and availability of spare parts.
8. Warranty and Customer Support
A strong warranty reflects confidence in product quality. Chef’sChoice offers a 3-year limited warranty on both the 15XV and 1520, covering defects in materials and workmanship. This is above average for kitchen appliances. Reliable customer support is equally important—look for brands with accessible service centers, online resources, and responsive help desks. Reading user reviews can reveal how well a company handles repairs or replacements.
Different Types of Knife Sharpeners
Common Buying Mistakes to Avoid
❌ Mistake: Ignoring Your Knife Collection’s Angle Requirements
Why it’s bad: Using a sharpener set to the wrong angle can ruin your knives. Forcing a 20° knife into a 15° slot grinds away excess metal and shortens the blade’s lifespan.
What to do instead: Identify your knives’ original angles (check manufacturer specs) and choose a sharpener that matches or offers adjustable settings like the 1520 AngleSelect.
❌ Mistake: Choosing Based Solely on Price
Why it’s bad: Cheap sharpeners often use low-quality abrasives that create uneven edges or damage blades. You may end up spending more replacing ruined knives.
What to do instead: Invest in a mid-range model with proven performance. The Chef’sChoice 15XV offers excellent value at around $100.
❌ Mistake: Overlooking Maintenance Needs
Why it’s bad: Neglecting to clean or replace worn parts leads to inconsistent sharpening and potential motor burnout in electric models.
What to do instead: Follow the manufacturer’s maintenance schedule. Wipe down slots after each use and inspect abrasives monthly.
❌ Mistake: Assuming All Electric Sharpeners Are Equal
Why it’s bad: Some electric sharpeners apply too much pressure or heat, which can anneal (soften) the blade edge, reducing sharpness longevity.
What to do instead: Choose models with controlled feed mechanisms and cooling features. Chef’sChoice uses low-heat diamond abrasives to protect blade integrity.
❌ Mistake: Buying Without Testing Compatibility
Why it’s bad: Trying to sharpen a serrated bread knife in a standard slot can damage both the knife and the sharpener.
What to do instead: Verify that your sharpener supports your specific knife types. The 1520 AngleSelect includes a serrated slot—use it!
❌ Mistake: Skipping the Warranty Check
Why it’s bad: If a motor fails after six months and there’s no warranty, you’re stuck with a paperweight.
What to do instead: Always register your product and keep receipts. Chef’sChoice’s 3-year warranty provides peace of mind.
Budget Guidelines: How Much Should You Spend?
- Entry-Level ($20–$50): Basic pull-through or manual sharpeners. Suitable for occasional use with inexpensive knives. Expect limited angle control and shorter lifespan. Avoid for high-end blades.
- Mid-Range ($80–$150): Sweet spot for most home cooks. Includes electric models like the Chef’sChoice 15XV with diamond abrasives, multi-stage sharpening, and decent build quality. Offers great value and reliability.
- Premium ($150–$250): Advanced features such as adjustable angles (like the 1520 AngleSelect), quieter motors, and enhanced durability. Ideal for serious cooks with diverse knife collections.
- Luxury ($250+): Professional-grade systems with digital angle readouts, belt-driven mechanisms, or modular designs. Best for chefs, collectors, or those who sharpen frequently.
Expert Tips for Getting the Best Deal
- Buy during holiday sales: Black Friday, Cyber Monday, and Amazon Prime Day often feature 20–30% discounts on kitchen appliances, including Chef’sChoice models.
- Check refurbished options: Certified refurbished sharpeners from authorized sellers come with warranties and can save you 25% or more.
- Compare retailers: Prices vary between Amazon, Williams Sonoma, Sur La Table, and direct from Chef’sChoice. Use price-tracking tools like Honey or CamelCamelCamel.
- Read recent reviews: Older models may have been updated. Look for reviews from the past 12 months to ensure you’re getting current performance insights.
- Test in-store if possible: Some kitchen stores allow you to try sharpeners with demo knives. Feel the mechanism’s smoothness and noise level firsthand.
- Understand return policies: Ensure the retailer offers at least a 30-day return window in case the sharpener doesn’t meet your expectations.
- Bundle with knife care kits: Some sellers offer discounts when you buy a sharpener with honing steels or storage blocks.
- Register for brand newsletters: Chef’sChoice occasionally sends exclusive promo codes to subscribers.
Frequently Asked Questions
Q: Can I use the Chef’sChoice 15XV on Western-style knives?
A: Technically yes, but it’s not ideal. The 15XV is fixed at a 15-degree angle, which is finer than the standard 20 degrees used on most Western knives. While it will sharpen them, it removes more metal and may weaken the blade over time. For Western knives, the 1520 AngleSelect set to 20° is a better choice.
Q: How often should I sharpen my knives?
A: It depends on usage. Home cooks might sharpen every 3–6 months, while professionals may do it weekly. A good rule: if you need to apply noticeable pressure to cut tomatoes or paper, it’s time to sharpen.
Q: Will these sharpeners work on ceramic knives?
A: No. Ceramic blades require diamond-coated sharpeners specifically designed for brittle materials. The 15XV and 1520 are intended for steel knives only.
Q: Do I still need a honing steel?
A: Yes! Honing steels realign the edge between sharpenings and extend the time between full sharpenings. Use it weekly; sharpen only when honing no longer restores performance.
Q: Can children use these sharpeners safely?
A: Not recommended without supervision. Electric sharpeners involve moving parts and sharp abrasives. Teach proper technique and always unplug when not in use.
Q: How long do the diamond abrasives last?
A: With regular home use, diamond abrasives in Chef’sChoice models typically last 5–10 years. Heavy commercial use may require replacement sooner. Signs of wear include slower sharpening or uneven edges.
Q: Is the 1520 worth the extra cost over the 15XV?
A: If you own both Asian and Western knives, absolutely. The adjustable angle feature adds significant versatility. If you only use 15° knives (like most Japanese brands), the 15XV offers nearly identical performance at a lower price.
Q: Can I sharpen scissors or pocket knives?
A: The 1520 AngleSelect includes a small knife slot that works for many pocket knives and small scissors. The 15XV does not support these tools. Always check blade thickness compatibility.
Q: What’s the difference between “honing” and “sharpening”?
A: Sharpening removes metal to create a new edge; honing realigns the existing edge without removing material. Think of honing as maintenance and sharpening as restoration.
Our Final Recommendations
- Best for Budget-Conscious Buyers: Chef’sChoice 15XV – At around $100, it delivers professional-level sharpening for 15° knives with minimal fuss. Perfect for households with Japanese-style blades.
- Best Overall Value: Chef’sChoice 1520 AngleSelect – Slightly pricier (~$130–$150), but the adjustable angle system makes it the most versatile electric sharpener for mixed knife collections.
- Best Premium Option: Work Sharp Ken Onion Edition – For those willing to spend $200+, this belt-driven sharpener offers unparalleled control and speed for all blade types.
- Best for Beginners: Chef’sChoice 15XV – Simple three-stage operation with no settings to adjust. Just plug in and go.
- Best for Advanced Users: Lansky Deluxe 8” Sharpening System – Guided rod system with multiple angle options for precision tuning. Requires skill but delivers museum-quality edges.
Conclusion: Making the Right Choice
Choosing the right knife sharpener boils down to understanding your needs, knife types, and how much you’re willing to invest in long-term kitchen performance. The Chef’sChoice 15XV and 1520 AngleSelect represent two of the best electric options on the market today—each excelling in different scenarios. The 15XV is a streamlined powerhouse for fans of Japanese knives, while the 1520’s flexibility makes it the go-to for diverse collections. Beyond these models, remember that the best sharpener is one that you’ll actually use consistently. A $200 sharpener gathering dust is worse than a $50 one that keeps your knives in top condition.
Prioritize angle compatibility, build quality, and ease of use. Don’t let price alone dictate your decision—consider total cost of ownership, including potential knife replacements. Read reviews, compare features, and take advantage of warranties and return policies. And most importantly, treat your knives with respect: regular honing, proper storage, and timely sharpening will keep them performing like new for decades.
Whether you’re dicing onions, slicing sashimi, or carving a holiday roast, a sharp knife makes all the difference. With the insights from this guide, you’re now equipped to choose a sharpener that fits your kitchen—and your cooking philosophy. Happy sharpening!