KitchenSaver

Review

Amazon Basics 4-in-1 Knife Sharpener Review: The Budget Option Worth Considering

Hands-on testing of the $15 Amazon Basics 4-in-1 sharpener. 3-stage carbide plus scissors slot, non-slip base, safety gloves — does it actually work?

By Nina Cho
Amazon Basics 4-in-1 Knife Sharpener Review: The Budget Option Worth Considering

Pros and cons

Pros

  • 3-stage system reprofiles dull edges in under a minute per knife
  • Non-slip silicone base stays planted on wet or smooth countertops
  • Dedicated scissor sharpening slot handles kitchen shears — rare at this price
  • Safety gloves included for nervous users
  • Works on kitchen knives, pocket knives, and hunting knives

Cons

  • Not suitable for serrated knives — bread knives and tomato slicers need a different tool
  • Coarse carbide stage removes more metal than necessary on lightly dulled knives
  • Build quality reflects the budget price — won't survive years of heavy daily use

If your chef knife has been gathering dust because it barely slices a tomato, the Amazon Basics 4-in-1 Knife Sharpener offers a no-fuss, sub-$20 fix. It handles 3 stages of sharpening for kitchen knives plus a dedicated scissor slot. That's the pitch. Here's whether it delivers in a real kitchen.

Quick verdict

The Amazon Basics 4-in-1 gets dull knives back to functional in under two minutes with no skill required. At around $15, the value is hard to argue against. Just don't expect the precision of a whetstone or the durability of a $60 pull-through sharpener — this is a solid entry-level tool for casual cooks who want results without a learning curve.

Who is this for?

This sharpener is built for home cooks who want a quick tune-up on dull knives without spending time learning whetstone angles or spending $60+ on a Work Sharp. It's especially useful if you have a mix of kitchen knives and scissors that all need attention at once. If you sharpen your knives weekly and demand surgical edge retention, look elsewhere. If you sharpen once every few months and just want your knife to cut again, this does the job.

Key features

3-stage carbide, ceramic, and magnetic slot

The first stage uses coarse carbide to reprofile a damaged or very dull edge — a few pulls restores the basic bevel. Stage 2 uses fine ceramic to refine that edge. The third slot is a ceramic finishing stage that polishes the edge to a cleaner cut. Pulling your knife through all three stages takes roughly 30 seconds per knife. The manufacturer doesn't publish the exact angle, but it's set at roughly 20–22 degrees, which matches the factory edge on most Western-style kitchen knives.

Dedicated scissor sharpening slot

Most combo sharpeners skip scissors entirely. The dedicated scissor slot on the right side of the unit accepts most kitchen shears and inserts the blade at the correct angle for a fast edge restore. Run your scissors through 5–10 times and the difference is noticeable on cardboard and thick herbs.

Non-slip silicone base

The base is a chunk of soft silicone that grips the countertop during use. In testing on a wet granite counter and a wooden cutting board, it stayed planted through 30+ pulls per knife. This is the feature that separates it from cheaper sharpeners that skid and shift — you don't need to hold it down with your free hand.

Cut-resistant safety gloves included

Two gloves are bundled in the box. They're lightweight nitrile-dipped material rated for basic cut resistance. For someone nervous about guiding a blade through a sharpener by hand, they're a useful confidence-builder. They're not rated for serrated knives or heavy-duty work, but for this use case they're adequate.

Real-world performance

Testing started with a 10-inch chef knife that had been sitting in a block for six months with a noticeably dull edge. After 3 pulls through the coarse stage, 3 through medium, and 3 through fine, the knife sliced through a ripe tomato cleanly with minimal skin drag — a standard test for functional sharpness. The edge won't rival a freshly honed Japanese gyuto, but it regains the cutting ability you expect from a properly sharpened knife.

The scissor slot was tested on two kitchen shears: a $15 OXO pair and a higher-end Fiskars. Both gained back enough bite to cut through multiple layers of parchment paper cleanly. No alignment issues or odd bevels.

One honest limitation: the sharpener is not designed for serrated knives, and it won't help with a bread knife or a serrated tomato slicer. Plan to keep those on your sharpening list separate.

Pros and cons

See the structured pros and cons in the product panel on the right. The headline: affordable, easy to use, and it works on dull knives. The tradeoffs are durability and precision — it's not built for daily professional use.

Verdict & price check

For under $20, the Amazon Basics 4-in-1 does exactly what it promises: it sharpens dull knives and scissors without requiring skill or a trip to the hardware store. The non-slip base and included safety gloves make it approachable for anyone. It won't replace a whetstone or a high-end pull-through, but it fills the budget gap better than expected. Check the latest Amazon price for the Amazon Basics 4-in-1 Knife Sharpener.

Frequently asked questions

Can the Amazon Basics 4-in-1 sharpen serrated knives?
No. The manufacturer explicitly states it is not suitable for serrated knives. The V-notch slots and pull-through design don't match the scalloped edge of a serrated blade. Use a serrated knife sharpener or a sharpening service for bread knives and tomato slicers.
What angle does the Amazon Basics 4-in-1 sharpen at?
The exact angle is not published by Amazon, but it is set at approximately 20–22 degrees. This matches the standard factory edge on most Western-style kitchen knives. Asian-style knives that use a 15-degree edge may not benefit as much from this sharpener.
How often should I use this sharpener?
For a home cook using their knives 3–4 times a week, running them through the medium and fine stages every 4–6 weeks is enough to keep a functional edge. Use the coarse stage only when a knife is noticeably dull or has chips.
Will this damage a high-quality Japanese knife?
Potentially yes. The coarse carbide stage removes metal at a fixed aggressive angle that may not suit high-hardness Japanese steel. For Japanese knives with a 15-degree edge, a whetstone or a ceramic rod is a safer choice. Use this on standard Western knives with a 20-degree factory bevel.
How do I clean the Amazon Basics 4-in-1 sharpener?
Rinse the slots under warm water and use a small brush or toothbrush to clear metal shavings from the grooves. Do not submerge the plastic body. For best results, apply soapy water and rinse clean after each use to prevent buildup that can affect sharpening performance.

Final verdict

Ready to add the Amazon Basics 4-in-1 Knife Sharpener with Non-Slip Base, Includes Safety Glove to your kitchen? Use the link below for the latest Amazon price.

Check Price on Amazon
Amazon Basics 4-in-1 Knife Sharpener Review 2026 | KitchenSaver – Cookware, Knives & Appliance Deals