Sharp Pebble Orange Ninja 4-Stage Knife Sharpener
- 4-stage manual sharpener, no power
- Coarse, medium and fine grits
- Straight and serrated blades supported
- Carbide, ceramic and tungsten steel abrasives
- 8.18 x 1.96 x 3.3 inches, 10.88 ounces
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A handheld four-stage sharpener for cooks who want repair, sharpening and polishing in one tool. The listing does not say which blade types or steels it should avoid, so check before using it on specialty knives.
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ASIN: B09PZDXSLLCategory: Knife Sharpeners
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Overview
Pulling a blade through four stages takes it from repair to sharpening to polish, with coarse, medium and fine grits in carbide, ceramic and tungsten steel. A non-slip grip suits left and right handed cooks.
The reason to buy is a compact tool that handles both straight and serrated edges without power or setup. The limitation is the lack of any published angle, stage order detail or blade type restrictions.
Who it's for
Home cooks who sharpen a few everyday knives and want a non-slip tool for either hand. Collectors of fine or thin blades should use a guided sharpener or a stone.
Pros and cons
- Four stages in one tool
- Handles straight and serrated edges
- Works for left and right hands
- Non-slip ergonomic grip
- Sharpening angle not listed
- Blade restrictions not stated
- Pull-through design removes metal quickly
Performance notes
Each stage uses a different abrasive, so the blade moves from coarse repair through medium sharpening to fine polish in a few pulls. A fixed slot sets the angle, which makes results repeatable but also limits control. Pressure and number of passes decide how much metal comes off.
Specifications
| Brand | Sharp Pebble |
|---|---|
| Dimensions & fit | |
| Item weight | 10.88 ounces |
| Item Dimensions L x W x H | 8.18"L x 1.96"W x 3.3"H |
| Construction & materials | |
| Color | Black and orange |
| Material Type | ABS, carbide, ceramic, plastic, tungsten steel |
| Included components | |
| Included Components | 4-stage manual knife sharpener |
| Other details | |
| Grit Type | Coarse, medium, fine |
| Abrasive type | Carbide, ceramic, tungsten steel |
| Mechanism | 4-stage manual pull-through |
Closest rivals on specs
SHARPAL 103N All-in-1 Garden Tool and Knife Sharpener- Item Weight 0.68 vs 0.39 pounds (+74%)
Kitchellence KS37 3-Stage Knife Sharpener with Glove- Item Weight 0.68 vs 0.39 pounds (+74%)
Frequently asked questions
Does the Orange Ninja sharpen serrated and straight knives?
Yes. The title says it repairs, sharpens and polishes straight and serrated blades. It does not list specialty knives such as ceramic or Japanese styles.
Is the Orange Ninja sharpener electric?
No. It is a manual four-stage tool with no power source.
Can left-handed cooks use the Orange Ninja?
Yes. The title says it works for left and right handed cooks.
What materials are in the Orange Ninja sharpener?
Carbide, ceramic and tungsten steel abrasives in an ABS and plastic body.