SHARPAL 121N Dual-Grit Diamond Sharpening File
- Monocrystalline diamond surface
- Coarse and extra fine grits
- 8.46 x 1.38 x 0.51 inches plate size
- 150 grams, black
- Single item per package
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A dual grit diamond plate for sharpening and honing edges. The category says chisel, but the grit and diamond material point to a sharpening tool, and the listing does not say what it can sharpen.
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ASIN: B07WJJLFMXModel: 121NCategory: Chisels
Overview
Rubbing an edge across the diamond surface is how this SHARPAL plate works. One side is coarse for reshaping and the other is extra fine for finishing. The body is black and slim enough to hold in one hand.
Diamond is hard enough to grind steel that ordinary stones struggle with. Two grits in one plate cover fast stock removal and a smoother finish. The listing never says which tools it is meant for, nor how the sides are marked, so check before using it on specialty steel.
Who it's for
A workshop bench or kitchen drawer suits a small plate for quick edge touch ups. A user with many large blades or a need for a stated flatness figure should look at a larger stone with those details.
Pros and cons
- Diamond surface cuts hard steel
- Two grits in one plate
- Slim hand-held size
- Compatible tools not listed
- Category label says chisel
- Grit numbers not given
Performance notes
The coarse grit removes metal quickly to restore a damaged edge, and the extra fine grit polishes it. Diamond stays flat and resists wear over many uses. Pressure and angle control the final edge, which is up to the user.
Specifications
| Brand | SHARPAL |
|---|---|
| Model | 121N |
| Dimensions & fit | |
| Item Dimensions L X W X H | 8.46 inches L x 1.38 inches W x 0.51 inches H |
| Item weight | 150 grams |
| Construction & materials | |
| Material Type | Monocrystalline Diamond |
| Color | Black |
| Included components | |
| Unit Count | 1 count |
| Included Components | Item |
| Other details | |
| Grit Type | Coarse, Extra Fine |
| Number Of Items | 1 |
Closest rivals on specs
Bora 501057 Combination Sharpening Stone 6 Inch- Item Weight 0.33 vs 0.3 pounds (+10%)
TEKTON PNC91002 Cold Chisel Set 3 Piece- Item Weight 0.33 vs 0.37 pounds (-11%)
Frequently asked questions
Is the SHARPAL 121N a chisel?
No. The category says chisel, but the diamond material and grit types describe a sharpening plate.
How big is it?
8.46 inches long, 1.38 inches wide and 0.51 inches thick.
How heavy is it?
150 grams.