The Dremel sharpening kit puts three separate jobs in one box. One attachment handles chainsaw chains, one handles mower blades, and one handles garden tools like shears and hoes. Each piece has a real ceiling on what it can fix.
The kit is model A679-02, and it clips onto a Dremel rotary tool you may already own. It ships with four sharpening stones and a mounting system that installs in seconds, according to Dremel’s own listing. That makes it a tool for touch ups, not for chains or blades that took real damage.
This guide breaks down what is in the box and which Dremel tools it fits. It also covers where each attachment stops being useful. For step by step technique on any single job, our linked guides go deeper.
What is in the Dremel A679-02 kit
The A679-02 ships with three attachments. That covers a chainsaw sharpener, a lawn mower blade sharpener, and a garden tool sharpener. Dremel also bundles four sharpening stones with the kit.
The company lists an easy screw on mounting system that takes seconds to attach. No extra tools are needed for the mower or garden tool attachments.
The chainsaw attachment needs a short assembly step. You fit a guide and shims around the clamp before use. A small adjustment tool comes along for setup.
The stones are color coded by diameter. Blue measures 5/32 inch, orange measures 3/16 inch, and pink measures 7/32 inch. A larger orange stone is shared by the mower and garden tool jigs.
Replacement stones are sold separately from the full kit. They typically cost only a few dollars for a pair. That keeps the kit cheap to run once the included stones wear down.
| Attachment | Stone | Best for | Honest ceiling |
|---|---|---|---|
| Chainsaw sharpener | Blue, orange, pink stones (5/32 to 7/32 inch) | Touch ups on a chain that is just going dull | Not built for a chain that hit a rock or a nail |
| Lawn mower blade sharpener | Larger orange stone | Restoring a working edge on a mower blade | Will not fix a badly nicked or bent blade |
| Garden tool sharpener | Larger orange stone (shared) | Shears, hoes, and small hand tools | Struggles on heavily pitted or rusted edges |
Which Dremel tools fit the A679-02
Dremel lists compatibility with a specific set of rotary tools. That list covers the 4300, 4000, 3000, 200, 100, 8260, 8250, 8240, 8220, 7760, 3100, and 8150. If your rotary tool is not on that list, check the collet size before you buy.
The kit itself is compact, at about 1.8 inches tall, 4.275 inches wide, and 0.28 pounds. Storage is not a concern in a crowded shop drawer.
The chainsaw attachment: what it fixes and what it does not
This is the attachment most buyers care about. It clamps onto the chain guide bar. The rotary tool then spins the correct stone size for your chain pitch as you touch up each tooth.
A detailed teardown review found a real limit here. The stock guide can keep the stone from seating fully into the tooth notch on some chains. The edge you get is not always a full resharpen.
The same review found another gap. The kit has no jig for setting depth gauge height, even though the instructions reference that measurement.
Use this attachment for a chain that is going dull from normal cutting. It is not built for a chain that hit a rock, dirt, or a nail.
For the full filing sequence, tooth angle, and depth gauge steps, our full walkthrough on filing chain teeth with this attachment covers it in order.
The mower and garden tool attachments
The lawn mower attachment uses the larger orange stone to restore a working edge on a mower blade. It is fast for a blade that is simply dull from a season of cutting grass.
The garden tool attachment shares that same stone and handles shears, hoes, and other small hand tools. Neither attachment is built for a blade that is bent, badly nicked, or pitted with rust. At that point you are looking at a full regrind or a replacement blade.
For the mower specific process, our mower blade sharpening walkthrough covers balance and removal steps. For hand tools, see our guide on sharpening hoes and shears between seasons.
Who this kit actually suits
This kit fits one situation well. You already own a Dremel rotary tool and want light touch up capability across three tool types. It is not a dedicated chain grinder, and it is not a bench mounted mower blade sharpener.
If you sharpen chains often, or run a mower crew, a dedicated tool for that single job will outlast this kit’s stones. It will also give a more consistent edge over time.
If you sharpen a chain twice a season and touch up shears once in a while, the A679-02 covers all three jobs from one box.
Dremel A679-02 Sharpening Kit
Best for Light Use
3 rotary attachments | 4 sharpening stones | around $25
The A679-02 fits Dremel’s common rotary tools, including the 4000, 4300, and 3000 series. It installs with a screw on mount and covers chain, mower blade, and garden tool touch ups from one kit.
The recurring limitation is depth. There is no depth gauge jig for the chain attachment, and the stock guide does not always seat the stone fully in the tooth notch. Replacement stones are cheap, so the kit stays affordable to keep running.
Pros
- One kit, three attachment types
- Fits a wide range of Dremel rotary tools
- Cheap replacement stones
- Quick screw on mounting
Cons
- No depth gauge jig for the chain attachment
- Guide can limit full stone seating on some chains
- Not for badly damaged chains or blades
Mistakes to skip
Do not use this kit as your only fix for a chain that hit a rock or a nail. That kind of damage needs a full regrind, not a touch up stone.
Do not skip the stone size chart. Using the wrong stone diameter for your chain pitch will round the tooth instead of sharpening it.
Do not force the mower blade attachment on a bent blade. Balance the blade first, or the imbalance will only get worse at speed.
The bottom line: The Dremel A679-02 is a solid light duty kit if you already own a compatible rotary tool. It handles routine touch ups on chains, mower blades, and garden tools well. It will not rescue anything that took real damage.
Frequently asked questions
What comes in the Dremel A679-02 kit?
Three attachments: a chainsaw sharpener, a lawn mower blade sharpener, and a garden tool sharpener. Four sharpening stones and mounting hardware are also included.
Which rotary tools work with this kit?
Dremel lists the 4300, 4000, 3000, 200, 100, 8260, 8250, 8240, 8220, 7760, 3100, and 8150 as compatible models.
Can it fix a badly damaged chainsaw chain?
No. It is built for routine touch ups. A chain that hit a rock or a nail needs a full regrind first.
How long do the sharpening stones last?
Wear depends on how much you use it. Replacement stones are inexpensive and sold separately from the full kit.
Does one kit really cover mower blades and garden tools too?
Yes. The larger orange stone works both jigs, so shears, hoes, and mower blades share one stone.
Is the A679-02 worth buying for occasional use?
For occasional touch ups across three tool types, yes. For frequent heavy use on any single tool, a dedicated sharpener will hold up better.
For more shop tool coverage, browse more shop tool sharpening guides.
Sources
- Dremel: A679-02 Sharpening Kit product page, official specs and contents. https://www.dremel.com/us/en/p/a679-02-26150679ad
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