The garage shelf has a chisel with a nicked edge, a pair of loppers that will not close clean, and a mower blade that is more dull than sharp. One machine promises to fix all three. That machine is the Craftsman utility sharpener, and the promise is where most owners start asking questions.
This page covers what the tool actually does, what its real specs are, and where owners run into trouble. It also covers why most sharpening shelves end up with a dedicated tool instead.
What the Craftsman utility sharpener is
The Craftsman utility sharpener, model 921174, is an electric wet and dry stone grinder. It runs at 170 RPM with a 120 grit stone wheel, and it holds a small water trough that keeps the stone cool while it spins.
Craftsman built it as a general shop tool, not a dedicated knife machine. The listed use case covers chisels, plane irons, and general blades, with owners also trying it on scissors and drill bits with mixed results.
It is no longer sold new. Both major retailers we checked list it as out of stock everywhere, which lines up with owner reports that it has quietly left the current Craftsman catalog.
What it actually sharpens well
Owners who like this tool use it almost entirely on chisels and plane irons. The slow wheel speed and the water trough keep the edge from overheating, which matters most when a chisel has been nicked by a hidden screw or nail.
One workshop review described using it as a first stage grinder only, setting a rough bevel before finishing by hand with progressively finer sandpaper. That is a realistic way to use this machine well.
Mower blade sharpening is a weaker case for it. The 120 grit stone leaves a finer edge than a mower blade needs, and a mower blade dulls fast enough that a coarser, faster tool usually makes more sense.
Where owners run into trouble
Knife work is the recurring complaint. Owners looking for a budget knife sharpener report inconsistent results, and community feedback on this tool leans negative specifically for kitchen knives.
The fixed stone wheel offers no angle guide, so every pass depends on freehand skill. That works for a chisel bevel but punishes a thin kitchen edge fast.
Drill bits are a similar story. Nothing about the unit holds a bit at a repeatable point angle, so it takes practiced freehand technique to get a clean cutting edge rather than a rounded one.
Better tools for each job
Because a single stone wheel spreads itself across four jobs, a dedicated tool almost always outperforms it at any one of them. Here is what actually earns a spot on the bench.
| Tool | Best for | Angle control | Price band | |
|---|---|---|---|---|
| Craftsman utility sharpener | Chisels, plane irons | Freehand only | Discontinued | |
| Work Sharp Original | Kitchen and pocket knives | Guided slots | Around $60 | |
| Drill Doctor 500X | Twist drill bits | Fixed jig | Around $70 | Price |
| Work Sharp Ken Onion MK.2 | Serious knife owners | Adjustable guide | Around $170 | Price |
Work Sharp Original Knife & Tool Sharpener
Best Value
Belt driven | guided slots | around $60
This is the tool most people reach for after a stone wheel grinder disappoints them on knives. Guided slots hold a fixed angle, so the edge comes out even instead of freehand.
It is not built for chisels or drill bits, and the manufacturer lists it strictly for knives and some garden tools. Skip it if a wide bevel job like a plane iron is your main need.
Pros
- Guided angle, easy for beginners
- Fast on dull kitchen knives
- Compact and affordable
Cons
- Not for chisels or bits
- Coarse belt removes more metal than a stone
Drill Doctor 500X
Best for Bits
Fixed point angle jig | handles standard twist bits | around $70
Where a general shop grinder leaves bit sharpening to freehand skill, the Drill Doctor holds the bit in a jig. The manufacturer lists it for standard twist bits from small diameters up to a common shop range.
Owner reports repeatedly mention it as a fix for chewed up bits that would otherwise get tossed. It is a one job tool, so it will not touch a knife or a mower blade.
Pros
- Repeatable point angle every time
- Rescues bits that look ruined
Cons
- Bit only, no other use
- Setup takes a few tries to learn
Work Sharp Ken Onion Edition MK.2
Upgrade Pick
Variable speed belt system | adjustable angle guide | around $170
This is the step up for someone who sharpens often and wants more control than a general shop grinder or a basic guided slot tool ever gave them. The angle guide adjusts, and belt choice covers coarse repair through fine polish.
The recurring complaint is price for a casual user. Skip it unless knives get real weekly use in your kitchen or shop.
Pros
- Adjustable angle, wide belt range
- Handles thick outdoor blades too
Cons
- Overkill for occasional use
- Learning curve on belt changes
Mistakes to skip
Do not buy a Craftsman utility sharpener new expecting current stock. It has left the active catalog, and any listing selling one new should be checked carefully before purchase.
Do not expect one wheel to serve knives, bits, and mower blades equally well. That is the exact tradeoff that pushed most owners toward separate tools.
If you already own one, do not force it onto a kitchen knife edge. How each sharpener style is built explains why an angle guided tool beats a freehand stone for thin blades.
The bottom line
The bottom line: the Craftsman utility sharpener earns its keep on chisels and plane irons, not knives, bits, or mower blades. For actual knife work, a guided tool like the Work Sharp Original does the job with far less guesswork.
FAQ
Is the Craftsman utility sharpener still sold new?
No. Both major retailers we checked list it as out of stock everywhere, and it does not appear in the current Craftsman catalog search.
What amperage motor does it use?
Listings disagree. One retailer spec sheet lists a 0.7 amp motor at 120 volts, while another listing shows a different figure, so treat the exact number as unconfirmed until you check the physical nameplate.
Can it sharpen kitchen knives?
It can, but owner reports repeatedly mention inconsistent results because there is no angle guide. A dedicated knife sharpener like the Work Sharp Original gives a more even edge.
Is it good for mower blades?
Not especially. The 120 grit stone produces a finer edge than a mower blade needs, and a purpose built dedicated mower blade sharpening tool works faster for that job.
What should I buy instead if I sharpen a lot of drill bits?
See our full look at drill bit sharpening for jig based options built specifically for that job, including the Drill Doctor line.
Where can I find one used?
Secondhand listings show up occasionally through general marketplaces. If you are shopping for a Craftsman utility sharpener, check the drive belt and stone condition before buying.
For the wider picture, the Work Sharp Original in detail covers how that lineup compares on knives specifically, and other powered sharpening options rounds up the rest of the motorized field. Our knife sharpening category page covers every style if you are still deciding what fits your shop.