10 Best Knife Sharpener Curved Blade of 2025

Tested and Reviewed: Top 10 Knife Sharpener Curved Blade deals with expert ratings from 8.1 to a perfect 10

June 2025 Edition

Editor's Choice

9.7

Save 13%

WORK SHARP

Work Sharp Guided Field Sharpener, Compact Travel Hunting Knife Sharpener Tool

13% OffFree Shipping

Editor's bottom line:

“This knife sharpener curved blade is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

COMPLETE KNIFE SHARPENER: For field, home, or shop use designed for sportsmen who need a complete, compact field sharpening solution. The diamond plates can be easily removed to expose a broad head wrench to speed sharpening in the field.
ALL THE TOOLS & ACCESSORIES: Includes diamond plates, ceramic rods, leather strop, and sharpening guides. The ceramic honing rod rotates to expose coarse & fine honing surfaces, as well as a grooved surface for sharpening fish hooks.
CONSISTENT, COMPACT & DURABLE: Includes a 20-25-degree angle to customize your sharpening with 5 abrasives. Maintain a sharp edge while on the go, hunting, fishing, or camping. All elements are self-contained & require no tools, assembly, or set-up
3-YEAR WARRANTY: All Work Sharp sharpeners come with a comprehensive 3-year warranty. Each knife & tool sharpener is meticulously designed and quality-checked at our Oregon facility. We proudly stand behind our products.
DESIGNED, ENGINEERED, & CALIBRATED IN OREGON: We design, engineer, and calibrate our sharpening machines all under one roof in Ashland, Oregon & ensure our products are sourced from the highest caliber manufacturers, both in the USA and globally.

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Picked by 201 people today

9.5

Lansky

Lansky 4-Pack Curved Blade Knife Sharpening Stone Kit - HRSET

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Main Highlights

Lansky Knife Sharpener Kit Accessory: Designed to be used with your Lansky Sharpening System, these curved blade hones let sharpen any inwardly curved blade for which most other knife sharpeners don't work.
Multi-Grit Hone Set: This 4-pack pocket knife sharpening kit features four blade sharpener hones: a coarse hone (120 grit) for edge reconditioning, a medium hone (280 grit) for sharpening and less frequent touch-ups, a fine hone (600 grit) for frequent touch-ups to keep your blade paper-slicing sharp, and an ultra fine (1000 grit) ceramic knife sharpener stone for polishing to a razor sharp edge.
Made Specially for Curved Blades: These hones were designed with a curve to allow sharpening of knives with a curved blade such as Karambits, Hawksbills, Kukri, and Scythes. Just attach the desired hone and sharpen like you would any other knife.
Materials: Knife sharpeners are typically made from one of three materials: natural stone, ceramic, and diamond. These hones are made from Alumina Oxide and Silicon Carbide, both of which make for a knife sharpener tool that is durable and compatible with honing oil.
Blade Protection: For best results, use Lansky Nathan's Natural Honing Oil (not included). Honing oil is not required, but just a few drops can help to protect the stone and preserve your blade.

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9.5

SHARPAL

SHARPAL 178N 3-In-1 Blade Sharpener | 4-Inch 600 Grit Diamond Sharpening Rod | Sharpen All Knife and Tool with Straight Edge, Serration & Hooks | Pocket Knife Sharpener | Durable Aluminum Handle

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Main Highlights

Durable monocrystalline diamonds fine 600 grit (25 micron) coated onto 4 inch in length round shaft and 3.5 inch tapered rod
3-In-1: Round diamond coated rod for sharpening straight edge; Tapered diamond rod for sharpening serrations and gut hooks; Sharpening groove for fishhooks and pointed tools
A handy, durable, portable knife and tool sharpener requires no water or oil
Both round and tapered rod can be stored compactly in the aluminum handle when not in use. Easily take anywhere with lanyard hole and storage pouch
An ideal companion for any knife enthusiast such as hikers, backpackers, anglers, hunters, hobbyists and carpenters

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9.2

KITCHELLENCE

4-in-1 Kitchen Knife Accessories: 3-Stage Knife Sharpener Helps Repair, Restore, Polish Blades and Cut-Resistant Glove (Black)

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Main Highlights

3-Step Knife Sharpener: With our incredible 3-slot system, were revolutionizing the art of knife sharpening! The 1st diamond sharpening rod repairs and straightens damaged blades before the 2nd slot sharpens to restore its V-shape. Finally, the 3rd slot fine tunes for a clean polish.
Easy to Use: Whether youre right or left-handed, the ergonomic handle allows you to restore your cooking knives in a matter of seconds! Simply place the blade in each of the slots and gently pull the knife through a few times for fast, effective sharpening.
Cut-Resistant Glove Included: At Kitchellence, we put the safety of our customers above all else. Designed with a non-slip base, our kitchen knife sharpener offers comfortable control while you work. Were even including a cut-resistant glove for added safety!
Premium Quality: With our professional knife sharpener kit, you dont have to be a chef to cook like one! Crafted from solid ABS plastic, its strong, durable and designed to last a lifetime. Made with high quality materials, knives will look and work like new.
Shop Risk Free: Were so confident that youll love our knife sharpening kit, were backing each order with our unconditional money back guarantee! If you are not completely satisfied, simply return the product within 30 days and well refund your purchase.

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9.0

Save 11%

Smith's

Smith’s 50984 Pocket Pal Mini Tactical Knife Sharpener - OD Green - 2 Stage Sharpener & Diamond Sharpening Rod - Outdoor Hunting Knife & Hook Sharpener - Compact, Durable, & Lightweight

11% OffFree Shipping

Main Highlights

MINI TACTICAL SHARPENER Smiths Pocket Pal Mini Tactical Knife Sharpener features a G-10 handle with a stainless-steel frame, a fold-out diamond-coated rod, and preset crossed carbides and ceramic stone for easy pull-through sharpening.
2 STAGE The pull-through coarse carbide slot provides a quick edge on dull or damaged knives & should only be used on straight edges. Fine ceramic stones provide a smooth, polished edge & can be used on serrated or standard blades.
DIAMOND ROD This sharpener includes a fold-out, tapered round diamond-coated rod that is designed for sharpening serrations, standard edges, small gut hooks, & fish hooks. It is great for fishing, camping, hiking, & other outdoor survival needs.
PORTABLE Smiths Mini Tactical Knife Sharpener measures 3.2 long x 1 wide & weighs 2 ounces! It is designed to easily take on the go and fit into your pocket. It also features a lanyard hole so it can easily be attached to a backpack or keychain.
GUARANTEED RESULTS The 2-Stage crossed carbide blades & ceramic stone have preset angles that provide guaranteed results with every use. Smiths compact sharpener is perfect for fishing, hunting, camping, hiking, and other outdoor survival needs.

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8.8

ACCUSHARP

AccuSharp Gourmet Series, 15 Degree Knife Sharpener for Gourmet Knives, Diamond-Honed Tungsten Carbide Reversible Blades, Hones & Refines Straight-Edge or Serrated Gourmet Knives, Hand-Held, Black

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Main Highlights

15º GOURMET KNIFE SHARPENER: Introducing the AccuSharp Gourmet 15º Knife Sharpener the epitome of user-friendly precision for refining your gourmet knives, whether serrated or straight-edged. Elevate your culinary experience with our gourmet knife sharpener, the ultimate solution for sharpening your 15-degree knives.
REVERSIBLE DIAMOND-HONED TUNGSTEN CARBIDE BLADE: To deliver years of reliable use, AccuSharp sharpening blades are crafted from diamond-honed tungsten carbide, one of the hardest known materials. With its unique design, the sharpening blades can be reversed doubling its life span.
SAFE & ERGONOMIC DESIGN FOR COMFORT: Featuring an ergonomic handle ensuring a secure grip and a full-length finger guard, it champions safety, reliability, and seamless operation, ideal for both home and industrial-grade kitchens.
UNRIVALED SHARPENING SOLUTION: Elevate your culinary experience with the AccuSharp Gourmet 15º Knife Sharpener, the ultimate solution for sharpening your 15-degree knives.
KEEP YOUR EDGE: AccuSharp focuses on one primary goal with our productsmaking the most effective knives, blade sharpeners, and tools in the world. We aim to provide the sharpest edge possible for your knives, tools, and equipment.

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Best Value

8.6

Save 20%

ナニワ研磨工業

Naniwa QA-0360 Goken Whetstone for Curved Blades Rough Whetstone

20% OffFree Shipping

Main Highlights

Size: 5.2 x 1.1 x 0.8 inches (133 x 28
Grit Size: #220

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8.3

SHARPAL

SHARPAL 129N Multipurpose Garden Tool Blade Sharpener for Knife, Pruners, Loppers, Hedge Shears Scissors, Axe, Hatchet, Machete, Lawn Mower Blade

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Main Highlights

Durable tungsten carbide blade: This tungsten carbide sharpener is widely used for quickly sharpening or repairing damaged blades. It is particularly common in gardening, where it can be employed to hone nearly all types of garden tools.
Ensure you use the corner of the tungsten carbide tool against the cutting edge for sharpening. Do not use the flat surface
Pure Ceramic blade: This ceramic blade component is designed primarily for fine honing tasks. It effectively removes residual burrs from blades previously honed with tungsten carbide tools. Additionally, it can be employed directly on delicate blades that require gentle handling to preserve their sharpness, making it ideal for kitchen knives and similar utensils.
Versatile: Restore and hone all sorts of pruners, knives, lawn mower blade, garden shears, axe, garden tools edge, etc.
Portable design with pen clip: The innovative design, featuring a pen clip on the cap, ensures the product is securely held in place when stored in a pocket. Ergonomic and comfortable grip handle with lanyard hole.
3 YEARS of Commitment and Superior After-Sale Service: Sharpal, headquartered in CA, US with branches in Germany and Australia, ensures easy and cost-effective sharpening solutions. All products are rigorously tested to the highest standards

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8.1

WORK SHARP

Work Sharp Portable Pivot Knife Sharpener, WSEDCPVT EDC, Black

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Main Highlights

Convex-carbide - quickly creates a durable convex cutting edge on any knife/ steel
Controlled sharpening - pivot-response follows the curve of the knife for a consistent angle and edge across the entire blade
Ceramic hone - hones/ re-sharpens any blade steel quickly and easily with just a few passes
Diamond plate - sharpens Fish hooks and a wide range of edge tools
On the go - compact, easy to use knife sharpener to quickly and easily maintain any knife edge anywhere, anytime

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8.1

Save 20%

Smith's

Smith’s 51446 Diamond Retractable Sharpener – Gold – Reversible Rod – Compact – Knife & Hook Sharpener – Straight & Serrated

20% OffFree Shipping

Main Highlights

REVERSIBLE ROD - Smiths Diamond Retractable Sharpener features a tapered diamond-coated rod to sharpen serrations and a half-round diamond-coated rod to sharpen straight edges. These rods can sharpen various knives, tools, and fishhooks.
DIAMOND-COATED STEEL - This steel rod quickly and effectively sharpens single or double-bevel pocket, sport, or tactical knives. Aluminum housing protects the sharpening rod to keep your product working and effective longer.
SHARPENING GROOVES - This sharpening rod includes a sharpening groove for fishing hooks and is coated with multiple layers of micron-sized, monocrystalline diamonds. Whether youre fishing, hunting, or in the kitchen this sharpener is for you.
COMPACT - Smiths Diamond Retractable Sharpener is the size of a writing pen! It can be adjusted to various lengths, and when not in use, the sharpening rod stores in the handle. It takes up no more storage space than a pencil in your pocket!
EASY STORAGE - This sharpener features a pocket clip for easy storage and to keep the product close for easy access. Slip this product in any pocket while working, and quickly grab it when its time to sharpen your knife or tool.

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Our Best Overall Choice

Best Choice

9.7

WORK SHARP

Work Sharp Guided Field Sharpener, Compact Travel Hunting Knife Sharpener Tool

13% OffFree Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

COMPLETE KNIFE SHARPENER: For field, home, or shop use designed for sportsmen who need a complete, compact field sharpening solution. The diamond plates can be easily removed to expose a broad head wrench to speed sharpening in the field.
ALL THE TOOLS & ACCESSORIES: Includes diamond plates, ceramic rods, leather strop, and sharpening guides. The ceramic honing rod rotates to expose coarse & fine honing surfaces, as well as a grooved surface for sharpening fish hooks.
CONSISTENT, COMPACT & DURABLE: Includes a 20-25-degree angle to customize your sharpening with 5 abrasives. Maintain a sharp edge while on the go, hunting, fishing, or camping. All elements are self-contained & require no tools, assembly, or set-up
3-YEAR WARRANTY: All Work Sharp sharpeners come with a comprehensive 3-year warranty. Each knife & tool sharpener is meticulously designed and quality-checked at our Oregon facility. We proudly stand behind our products.
DESIGNED, ENGINEERED, & CALIBRATED IN OREGON: We design, engineer, and calibrate our sharpening machines all under one roof in Ashland, Oregon & ensure our products are sourced from the highest caliber manufacturers, both in the USA and globally.

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