US
Lansky

Lansky QuadSharp 4-in-1 Knife Sharpener

  • Four angles: 17, 20, 25 and 30
  • Carbide slots, an edge in 3 to 4 strokes
  • Ceramic benchstone for fine polishing
  • Metal construction
  • Compatible with all Lansky kits and accessories

Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A manual sharpener with four preset angles and a ceramic stone, a sensible tool for a drawer of mixed blades. Serrated edge support and grit are not stated.

As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.

ASIN: B01BE8KCN6Category: Knife Sharpeners

Overview

Sharpening at a chosen angle is the point of the Lansky QuadSharp, a tool with carbide slots for fast edge setting and a ceramic stone for polishing. Pulling the blade through the slot that matches its angle restores the edge, then the benchstone refines it.

Four fixed angles in one body let a single tool cover blades ground differently. Carbide slots work fast but cut coarsely, which is why the ceramic stone is there for the finish. Grit ratings and serrated blade support are not listed.

Who it's for

A drawer of mixed knives, from fine slicers to heavier utility blades, is the situation it suits. People who want a powered sharpener or exact angles between the presets should pass.

Pros and cons

Pros
  • Four preset sharpening angles
  • Carbide slots work in few strokes
  • Ceramic stone for final polish
  • Rugged metal body
Cons
  • Serrated blade support not listed
  • Fixed presets, no fine adjustment
  • Manual only, no powered stage

Performance notes

Carbide slots shave steel from the edge as the blade is drawn through, so the angle is set by the slot rather than the hand. The ceramic benchstone then polishes away the rough burr. Light, even pressure matters more than speed.

Specifications

BrandLansky
Construction & materials
Material TypeMetal construction
Sharpening materialCarbide
Stone materialCeramic
Compatibility & installation
System compatibilityAll Lansky kits and accessories
Other details
Sharpening angles17, 20, 25 and 30
StagesCarbide slots, ceramic benchstone

Frequently asked questions

Does the Lansky QuadSharp work with other Lansky sharpening kits?

Yes. The listing says it is fully compatible with all Lansky kits and accessories.

Which angle should I use on the Lansky QuadSharp?

Use the slot from 17, 20, 25 or 30 that matches the angle your blade was ground at.

Is the Lansky QuadSharp electric?

No power source is listed. It is used by hand with carbide slots and a ceramic stone.