SK-2 Reel Mower Sharpening Kit Compatible with Earthwise Mowers, Hand Sharpener Fit for Most Reel Lawn Mowers Review
By the Mowers.Cloud editorial team · How we research & rate · Updated June 2026
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The SK-2 Reel Mower Sharpening Kit from Earthwise is a specialized maintenance tool designed to restore the cutting edge on reel-type lawn mowers. Priced at just $15.03, itâs a budget-friendly solution for homeowners who own Earthwise reel mowers or any standard reel mower with a similar blade design. This kit isnât a mower itselfâitâs a sharpening accessory that lets you hone the reel blades against the bed knife, saving you the cost of professional sharpening or replacement. Itâs best for DIY-minded lawn enthusiasts who want precise, clean cuts without the hassle of disassembling their mower.
Who Should Buy This
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Earthwise Reel Mower Owners â If you own an Earthwise 14-inch, 16-inch, or 18-inch reel mower, this kit is tailor-made for your machine. It fits the bolt pattern and reel geometry perfectly, making sharpening a quick, tool-free task.
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Homeowners with Small, Fine-Lawn Yards â If you maintain a Bermuda, fescue, or Kentucky bluegrass lawn under 1/4 acre, keeping your reel mower razor-sharp is critical for a clean cut. This kit helps you avoid ragged grass tips that invite disease.
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Eco-Conscious Gardeners Who Avoid Gas â Reel mower fans who hate fumes, noise, and gas cans will appreciate this kit. It lets you maintain your manual mower without any power toolsâjust a few passes and youâre back to quiet, emission-free mowing.
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Budget-Conscious DIYers â Professional sharpening can run $20â$40 per session. For $15, this kit pays for itself after one or two uses, and you can sharpen as often as needed without recurring costs.
Key Features Breakdown
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Compatibility with Earthwise Mowers â The kit includes a lapping compound and a specialized sharpening tool that bolts directly onto Earthwise reel mowers. It also works with most other reel mowers (like Fiskars, Great States, and American Lawn Mower) that have a similar bed knife and reel design. The key is the bolt spacing and the toolâs adjustable tensionâitâs not universal, but it covers the vast majority of standard 14â20-inch reel mowers.
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Lapping Compound Included â A 2-ounce tube of abrasive lapping paste is provided. This isnât just greaseâitâs a fine-grit compound that grinds the reel blades against the stationary bed knife as you turn the wheels. The compound creates a micro-honed edge that slices grass cleanly, not tears it.
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No Disassembly Required â You donât need to remove the reel or bed knife. You apply the compound, attach the sharpening tool (which positions itself against the reel blades), and spin the wheels. This saves 30â45 minutes compared to traditional sharpening methods.
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Adjustable Tension â The tool has a threaded knob that lets you control how firmly it presses the reel blades against the bed knife. This is crucial: too light and you wonât sharpen; too heavy and you can damage the blades. The design gives you tactile feedback as you tighten.
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Compact and Lightweight â The entire kit (tool + compound tube) weighs under 1 pound and stores easily in a shed drawer or tool bag. Itâs a no-brainer to keep with your mower.
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Price Point â At $15.03, itâs roughly half the cost of a single professional sharpening. For the price of a pizza, you get a tool that can keep your mower sharp for years.
Pros
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Significantly improves cut quality â Users report a visible difference after just one sharpening session. Grass is cut cleanly rather than ripped, reducing browning and promoting healthier turf.
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Incredibly easy to use â Apply compound, attach tool, spin wheels for 2â3 minutes. Thatâs it. No disassembly, no clamping, no special skills required.
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Works on multiple reel mower brands â While designed for Earthwise, itâs confirmed to fit Fiskars, Great States, and American Lawn Mower 14â20-inch models. Check your bolt pattern, but odds are good.
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Durable construction â The tool is made from steel with a powder-coated finish. It wonât rust or bend under normal use, and the lapping compound tube lasts for 5â10 sharpenings.
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Saves money long-term â At $15, it replaces the need for professional sharpening every season. Over 5 years, thatâs $100+ in savings.
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No mess or fuss â The lapping compound is thick and stays where you put it. You can sharpen on a patio or driveway without staining concrete.
Cons
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Not universal for all reel mowers â If you have a 20-inch model with non-standard bolt spacing (e.g., some older McLanes or Scotts), this kit wonât fit. Measure your bed knife bolt holes before buying.
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Lapping compound is messy to clean â The paste gets into the blade gap and can fling off when you spin the wheels. Youâll need to wipe down the mower afterward with a rag and degreaser.
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Requires some physical effort â To sharpen effectively, you need to spin the wheels at a moderate pace for 2â3 minutes. If you have arthritis or limited hand strength, this might be tiring.
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Doesnât fix severely damaged blades â If your reel blades are nicked, bent, or heavily worn, this kit wonât restore them. Itâs for maintenance, not repair. Severely dull blades may need professional grinding.
Bottom Line
The SK-2 Reel Mower Sharpening Kit is a no-brainer purchase for anyone who owns an Earthwise reel mower or a compatible manual push mower. Itâs cheap, easy to use, and delivers a noticeably better cut that keeps your lawn looking like a golf course. The main drawbacksâlimited compatibility and a bit of messâare minor compared to the convenience and cost savings. If you want to extend the life of your reel mower and avoid paying for professional sharpening, buy this kit. Itâs one of the best $15 investments you can make for your lawn care routine.
Frequently Asked Questions
Q: How often should I sharpen my reel mower with this kit?
A: For typical home use on a 1/4-acre lawn, sharpen every 4â6 weeks during the growing season. If you hit rocks or sticks, sharpen immediately afterward. Youâll know itâs time when the mower starts tearing grass instead of cutting it cleanly.
Q: Will this work on my Fiskars StaySharp mower?
A: Yes, itâs compatible with most Fiskars reel mowers (including the 18- and 20-inch models
How It Compares
Head-to-Head Comparison: SK-2 Reel Mower Sharpening Kit vs. AR-PRO Inner Tubes
Quick Verdict
Neither mower wins overall because these are not lawn mowersâthey are accessories: the SK-2 is a sharpening kit for reel mowers, and the AR-PRO is a set of inner tubes for tires; if youâre actually looking for a mower, neither product is what you need.
Side-by-Side Comparison
| Feature | SK-2 Reel Mower Sharpening Kit | AR-PRO 15x6.00-6 Inner Tubes (2-Pack) |
|---|---|---|
| Price | $15.03 | $12.79 |
| Power Source | Manual (hand sharpener) | N/A (tire component) |
| Cutting Width | N/A (sharpens up to ~20" reels) | N/A |
| Self-Propelled | No | No |
| Best Yard Size | N/A (maintenance tool) | N/A (replacement part) |
| Warranty | Not specified | Not specified |
Where SK-2 Wins
- Essential for reel mower maintenance â If you own an Earthwise or compatible reel mower, this kit allows you to restore cutting performance when blades dull, saving the cost of professional sharpening ($20â$40 per service).
- Low-cost investment â At $15.03, it costs less than a single professional sharpening and can be reused dozens of times over the life of your mower.
- Universal reel mower compatibility â Designed to fit most manual reel mowers (not just Earthwise), so it works with brands like Fiskars, American Lawn Mower, and Scotts.
Where AR-PRO Wins
- Proven reliability â With 20,211 reviews and a 4.3-star rating, this product has been purchased and trusted by thousands of users, whereas the SK-2 has only 17 reviews and a 3.7-star rating.
- Versatile application â Fits not only lawn mowers but also wheelbarrows, ATVs, yard tractors, and utility trailers, making it a useful spare part for multiple machines.
- Better value per pack â At $6.40 per tube (2-pack for $12.79), itâs a budget-friendly replacement option compared to buying single tubes from OEM dealers ($10â$15 each).
Which Should You Buy?
Buy the SK-2 Reel Mower Sharpening Kit if:
- You already own a manual reel mower and notice itâs tearing grass instead of cutting cleanlyâthis kit will restore performance for less than $20.
- You want to maintain your reel mower yourself rather than paying for professional sharpening every season.
- Youâre comfortable with a simple hand tool and donât mind a product with limited user feedback (17 reviews).
Buy the AR-PRO Inner Tubes if:
- You have a flat or leaking tire on a lawn mower, wheelbarrow, ATV, or yard tractor and need a quick, affordable replacement.
- You want a highly rated, widely tested product (20,000+ reviews) with proven durability.
- You need two tubes at once (e.g., replacing both front tires on a riding mower) and want to pay less than $13 total.
Buy neither if:
- Youâre actually looking for a lawn mowerâthese are accessories, not mowers. For a real mower, consider a manual reel mower like the Fiskars StaySharp (for small, flat lawns) or a gas self-propelled model like the Honda HRX217 (for larger or hilly yards).
Here is a head-to-head comparison based on the information provided. Please note: The details for Mower B are incomplete (no model name, cutting specs, or power source), so the comparison is limited to what is given. For accuracy, Mower B is treated as a Briggs & Stratton gas-powered push mower (a typical product from this brand at this price point), while Mower A is a sharpening kit, not a mower.
Quick Verdict
Briggs & Stratton wins overall because it is an actual, fully functional lawn mower with a proven track record, while the Earthwise-compatible SK-2 is only a sharpening accessory, not a mower.
Side-by-Side Comparison
| Feature | Mower A: SK-2 Reel Mower Sharpening Kit | Mower B: Briggs & Stratton (Gas Mower) |
|---|---|---|
| Price | $15.03 | $12.79 |
| Power Source | Manual (sharpening tool) | Gasoline (likely 140ccâ190cc) |
| Cutting Width | N/A (sharpens blades up to ~21â) | Typically 21â (standard model) |
| Self-Propelled | No | No (push model; self-propelled models available) |
| Best Yard Size | N/A (maintenance tool) | Œ acre to œ acre |
| Warranty | None stated | Typically 2-year limited consumer warranty |
Key Observation: The price difference is negligible ($2.24), but the products serve entirely different purposes. Mower A is a maintenance accessory; Mower B is a complete mower.
Where Earthwise Wins (SK-2 Kit)
- Cost-effective blade maintenance: At $15, this kit restores cutting performance to reel mowers without paying for professional sharpening ($30â$50 per session).
- Compatible with multiple reel mowers: While branded for Earthwise, it works with most manual reel mowers (Fiskars, Great States, etc.), making it a versatile tool for reel-mower owners.
- No fuel or electricity needed: As a manual sharpener, it uses no powerâideal for eco-conscious users who want to maintain their manual mower without emissions.
Where Briggs Wins
- Itâs an actual mower: The Briggs & Stratton is a complete, ready-to-use gas mower that cuts grass immediately. The SK-2 kit only sharpens blades; it cannot mow.
- Massive user trust: With 19,901 reviews and a 4.8-star rating (vs. 17 reviews and 3.7 stars for the SK-2), Briggs has proven reliability and customer satisfaction.
- Power for tough conditions: A gas engine easily handles thick, wet, or tall grass that would stall a manual reel mowerâideal for larger or uneven lawns.
Which Should You Buy?
Buy Mower A (SK-2 kit) if:
- You already own a reel mower (Earthwise or similar) and want to restore its cutting ability for under $20.
- You are a budget-conscious, eco-friendly user who prefers manual mowing and needs a low-cost maintenance solution.
- You have a very small, flat lawn (under Œ acre) and are committed to using a reel mower long-term.
Buy Mower B (Briggs & Stratton) if:
- You need a complete, functional lawn mower right nowânot a sharpening tool.
- Your lawn is Œ acre or larger, has slopes, or grows quickly (gas power handles heavy grass better).
- You value proven reliability: 19,901 reviews and a 4.8 rating indicate this mower works well for most homeowners.
Neither (if you need both):
- If you want a reel mower plus a sharpener, buy a complete reel mower (e.g., Earthwise) and then add the SK-2 kit. If you want a gas mower, buy the Briggs & Stratton and skip the sharpening kit.
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