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frontpage Posted by idk_then | Staff • May 19, 2025
frontpage Posted by idk_then | Staff • May 19, 2025

5" Corona Garden Tool Blade Sharpener Carbide File (Red)

$6.90

$11

37% off
Amazon
23 Comments 35,259 Views
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Deal Details
Update: This popular deal is still available.

Amazon has 5" Corona Garden Tool Blade Sharpener Carbide File (Red, AC 8300) on sale for $6.89. Shipping is free w/ Prime or on $35+ orders.

Grainger has 5" Corona Garden Tool Blade Sharpener Carbide File (Red, AC 8300) on sale for $6.89. Select free store pickup where available.
  • Note: Availability for pickup may vary by location.
Thanks to Deal Hunter idk_then for sharing this deal.

About this product:
  • Ideal for sharpening all straight blades: excludes saw blades
  • Small, convenient size easily fits in a pocket or tool bag
  • Non-slip rubber grip helps prevent slipping, keeping you safe while sharpening
  • 5" super carbide file is durable and designed to be comfortable to hold

Editor's Notes

Written by SubZero5 | Staff
  • About this Store:
  • Additional Information:
    • Rated 4.6 out of 5 stars on Amazon based on over 8.2k customer reviews.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by idk_then | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Update: This popular deal is still available.

Amazon has 5" Corona Garden Tool Blade Sharpener Carbide File (Red, AC 8300) on sale for $6.89. Shipping is free w/ Prime or on $35+ orders.

Grainger has 5" Corona Garden Tool Blade Sharpener Carbide File (Red, AC 8300) on sale for $6.89. Select free store pickup where available.
  • Note: Availability for pickup may vary by location.
Thanks to Deal Hunter idk_then for sharing this deal.

About this product:
  • Ideal for sharpening all straight blades: excludes saw blades
  • Small, convenient size easily fits in a pocket or tool bag
  • Non-slip rubber grip helps prevent slipping, keeping you safe while sharpening
  • 5" super carbide file is durable and designed to be comfortable to hold

Editor's Notes

Written by SubZero5 | Staff
  • About this Store:
  • Additional Information:
    • Rated 4.6 out of 5 stars on Amazon based on over 8.2k customer reviews.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by idk_then | Staff

Community Voting

Deal Score
+83
Good Deal
Get Deal at Amazon

Price Intelligence

Model: Corona AC 8300 Garden Tool Blade Sharpener, 1-Pack, Red

Deal History 

Sort: Most Recent
Post Date Sold By Sale Price Activity
03/28/25Amazon$6.89
5

Current Prices

Sort: Lowest to Highest | Last Updated 6/4/2025, 04:54 AM
Sold By Sale Price
Amazon$7.60
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Top Comments

Got it a few weeks ago on previous deal. It worked like a champ on my pruning shears.
Just to add that shipping is free at Home Depot
For $1 more, you can get a more versatile diamond coated steel sharpener. I use this one to sharpen my pruners and serrated knives.
https://www.amazon.com/Smiths-DRE...B001910FOA

22 Comments

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May 19, 2025
1,037 Posts
Joined Sep 2014

This comment has been rated as unhelpful by Slickdeals users.

May 19, 2025
1,212 Posts
Joined Oct 2011
May 19, 2025
westec2
May 19, 2025
1,212 Posts
Quote from brucedc :
Experts say this will dull or ruin your blades. Short term solutions to a long term problem.

But it's made by the same reliable company that makes my yard tools lol
May 19, 2025
165 Posts
Joined Oct 2019
May 19, 2025
MorningThundar
May 19, 2025
165 Posts
May 19, 2025
18 Posts
Joined Dec 2022
May 19, 2025
OakwoodEd
May 19, 2025
18 Posts

Our community has rated this post as helpful. If you agree, why not thank OakwoodEd

Got it a few weeks ago on previous deal. It worked like a champ on my pruning shears.
1
May 19, 2025
641 Posts
Joined Nov 2010
May 19, 2025
zjs2k
May 19, 2025
641 Posts

Our community has rated this post as helpful. If you agree, why not thank zjs2k

Quote from MorningThundar :
$7.60 at Home Depot

https://www.homedepot.com/p/Coron.../204162678

Just to add that shipping is free at Home Depot
1
May 19, 2025
90 Posts
Joined May 2021
May 19, 2025
HonestPiranha4587
May 19, 2025
90 Posts
I watched the video for this product. It recommends 4 to 5 passes on the blade surface and then one pass on the other side to remove burrs.

This is more consistent with a honing steel than true sharpening. 4 to 5 passes isn't going to remove a meaningful amount of metal. If your garden tools are dulled or if there are nicks or damage to the blade, you need to be able to remove some metal to get sharpness back. This isn't going to do that. Furthermore, it requires a fair amount of skill to do this free hand and get all the angles right. It's not surprising to hear that people have ruined their tools with it.

For my regular knives , I use a WorkSharp MK2. However I found it also works great for sharpening lawnmower blades and a variety of other outdoor tools. I found it to be super easy and it produces great results without having to learn a challenging skill. It's pretty much idiot proof.
3
5
May 19, 2025
2,493 Posts
Joined Oct 2009
May 19, 2025
coffeeduck
May 19, 2025
2,493 Posts
spooky. I bought a two pack from ali's express about a month or so ago for like a third of the price lol

always happens on sd. I buy something and then start getting the product fed to me weeks/months later
4

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May 19, 2025
285 Posts
Joined Aug 2017
May 19, 2025
wantorneed
May 19, 2025
285 Posts
For $1 more, you can get a more versatile diamond coated steel sharpener. I use this one to sharpen my pruners and serrated knives.
https://www.amazon.com/Smiths-DRE...B001910FOA
Pro
May 19, 2025
5,858 Posts
Joined Dec 2008
May 19, 2025
regcustomer88
Pro
May 19, 2025
5,858 Posts
Got one for $1 from temu few days ago just to try it out. Is this one a lot better?
4
May 20, 2025
2,427 Posts
Joined Jan 2008
May 20, 2025
poorgrad
May 20, 2025
2,427 Posts
Quote from wantorneed :
For $1 more, you can get a more versatile diamond coated steel sharpener. I use this one to sharpen my pruners and serrated knives.
https://www.amazon.com/Smiths-DRE...B001910FOA
Diamond coated 6" husky sharpener is $6.98 at home Depot.
https://www.homedepot.com/p/Husky.../321620961

Which works better?
How does ease of use compare?
May 20, 2025
285 Posts
Joined Aug 2017
May 20, 2025
wantorneed
May 20, 2025
285 Posts
Quote from poorgrad :
Diamond coated 6" husky sharpener is $6.98 at home Depot. https://www.homedepot.com/p/Husky.../321620961 Which works better? How does ease of use compare?
I don't know for sure because I have not used the Husky version. Judging from the shape in the images, the Husky version has diamond coating on the broad flat surfaces. IMHO, it would be less nimble to navigate along the curved pruner blade. I would prefer the Smith's version because it has a narrow flat surface. The Smith version also has a pointy end to sharpen serrated knives.
May 20, 2025
927 Posts
Joined Sep 2022
May 20, 2025
TealIdea227
May 20, 2025
927 Posts
Quote from brucedc :
Experts say this will dull or ruin your blades. Short term solutions to a long term problem.
I'd like to understand more about how this works, but there's plenty of microscopy out there that shows the V-shaped carbide sharpeners do indeed pull and rip metal parallel with the edge, and I've read that this effect is worse with harder steels and more pressure.
I don't know how to quote two posts in this new UI, but the other guy who talks about this working like a honing steel makes sense. If you apply enough pressure to actually remove metal, then logically you would be removing it by pulling and ripping: adhesion instead of abrasion. I do own one of these sharpeners, and I've never felt like I've accomplished much with it other than "steeling" - which can produce results on these softer steels.
May 21, 2025
40 Posts
Joined Nov 2014
May 21, 2025
chubs05
May 21, 2025
40 Posts
Quote from coffeeduck :
spooky. I bought a two pack from ali's express about a month or so ago for like a third of the price lolalways happens on sd. I buy something and then start getting the product fed to me weeks/months later
My friends and I call it the Sean Cursed as he would always buy something and then a week later it would be on sale.
May 21, 2025
27 Posts
Joined May 2011
May 21, 2025
breitherman
May 21, 2025
27 Posts
Quote from wantorneed :
For $1 more, you can get a more versatile diamond coated steel sharpener. I use this one to sharpen my pruners and serrated knives.
https://www.amazon.com/Smiths-DRE...B001910FOA
Thanks! I went with this version, seems to be a better fit for all the various tools I might want to hone.

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Last Thursday
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Last Thursday
figure8
Last Thursday
5,642 Posts
Quote from coffeeduck :
spooky. I bought a two pack from ali's express about a month or so ago for like a third of the price lol

always happens on sd. I buy something and then start getting the product fed to me weeks/months later
https://en.wikipedia.org/wiki/Frequency_illusion
1

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