Spyderco Tri-Angle Sharpmaker Knife Sharpening System
- 30 or 40 degree stone angles set by keyed holes
- Two sets of alumina ceramic stones, medium brown and fine white
- Serrated blades supported via rounded stone edges
- Aluminum safety rods guard the hands
- ABS base and lid store every part
- 10 x 10 x 2 inches, 16 ounces
- 2 year manufacturer warranty
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A fixed angle ceramic sharpener that gives repeatable edges on straight and serrated knives with simple vertical strokes. Only two angle settings are offered.
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ASIN: B000Q9C4AECategory: Knife Sharpeners
Overview
Stroking a blade straight down against ceramic stones held at a fixed angle is the whole technique here. Keyed holes in the plastic base set the stones, aluminum rods guard your hand, and every part snaps into the base and lid for storage.
Fixed angle guides remove the guesswork of freehand sharpening, and rounded stone edges reach into serrations. Only two angle settings exist, so a knife ground to another angle gets reshaped to match over time.
Who it's for
Kitchens with a mix of straight and serrated knives, plus scissors and shop tools, get one compact kit for all of them. Sharpeners who tune each blade to its own angle will find the fixed guides limiting.
Pros and cons
- Fixed angle guides for repeatable edges
- Handles serrated blades and scissors
- Two grits for sharpening and finishing
- Safety rods protect the guiding hand
- Only two angle settings
- No coarse stone in the box
- Stone grit numbers not listed
- Plastic base, not metal
Performance notes
Edge consistency comes from the keyed base holding each stone at a set angle, so the user only has to hold the blade vertical. The medium brown stones remove metal and the fine white stones refine the edge. Results drift if the blade tilts off vertical during strokes.
Specifications
| Brand | Spyderco |
|---|---|
| Dimensions & fit | |
| Item weight | 1 pound |
| Item Dimensions L x W x H | 10 × 10 × 2 inches |
| Construction & materials | |
| Color | Black |
| Material Type | Plastic (ABS Base) |
| Stone material | Alumina ceramic |
| Warranty & support | |
| Manufacturer Warranty Description | 2 years |
| Serrated blade support | Yes, via rounded stone edges |
| Other details | |
| Grit Type | Fine / Medium |
| Hand guard | Aluminum safety rods |
| Sharpening angles | 30 or 40 degrees |
Frequently asked questions
Will the Spyderco Sharpmaker work on scissors?
Yes. The listing names scissors, awls and many tools alongside knives.
Is the Spyderco Tri-Angle Sharpmaker an electric sharpener?
No. It works by hand, with simple vertical strokes against stones set in the base.
Does the Spyderco Sharpmaker 204MF come with a coarse stone?
No. The two included sets are medium grit brown and fine white alumina ceramic.
What is the Spyderco Sharpmaker base made of?
ABS plastic, with aluminum safety rods and a lid that the components snap into.