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expired Posted by DaddyScholz • Sep 27, 2021
expired Posted by DaddyScholz • Sep 27, 2021

DEWALT Flap Disc, Zirconia, 4-1/2-Inch x 7/8-Inch, 80-Grit (DW8309) - $3.49

$3.49

$15

76% off
Amazon
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Amazon.com [amazon.com] has DEWALT Flap Disc, Zirconia, 4-1/2-Inch x 7/8-Inch, 80-Grit (DW8309) for $3.49, regular price is $14.58. Shipping is free with Prime or on orders $25+.


These things are great for sharpening lawn mower blades, taking paint or rust of metal objects, etc.

About this item:
Zirconia grit enables 3X faster material removal than fiber resin metal sanding discs
Premium abrasive cloth provides up to 15 X longer life than fiber resin metal sanding discs
Type 29 fiberglass backing provides grinding angle of 20-25 degrees

https://www.amazon.com/gp/product...UTF8&psc=1
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Deal Details
Community Notes
About the Poster
Amazon.com [amazon.com] has DEWALT Flap Disc, Zirconia, 4-1/2-Inch x 7/8-Inch, 80-Grit (DW8309) for $3.49, regular price is $14.58. Shipping is free with Prime or on orders $25+.


These things are great for sharpening lawn mower blades, taking paint or rust of metal objects, etc.

About this item:
Zirconia grit enables 3X faster material removal than fiber resin metal sanding discs
Premium abrasive cloth provides up to 15 X longer life than fiber resin metal sanding discs
Type 29 fiberglass backing provides grinding angle of 20-25 degrees

https://www.amazon.com/gp/product...UTF8&psc=1

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+12
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Price Intelligence

Model: 4-1/2" x 7/8" 80g type 29 HP flap disc

Deal HistoryĀ 

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Sort: Lowest to Highest | Last Updated 7/1/2025, 07:42 PM
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9 Comments

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Sep 27, 2021
1,289 Posts
Joined Jan 2010
Sep 27, 2021
xenidus
Sep 27, 2021
1,289 Posts
Dewalt tools = A+

Dewalt Accessories (bits, sanding pads etc) = C- to D range

They notoriously score at the bottom of the barrel for "cost per performance" metrics on Project Farm Tests: https://www.youtube.com/channel/U...-wuOg_p0Ng

They got spanked pretty bad for this massive sandpaper show down as well: https://www.youtube.com/watch?v=NZDCRFi8dKY

Not the same product, but I bet it is the same manufacturing process.

Just my 2 cents...
2
Original Poster
Sep 27, 2021
349 Posts
Joined Nov 2012
Sep 27, 2021
DaddyScholz
Original Poster
Sep 27, 2021
349 Posts
Quote from xenidus :
Dewalt tools = A+

Dewalt Accessories (bits, sanding pads etc) = C- to D range

They notoriously score at the bottom of the barrel for "cost per performance" metrics on Project Farm Tests: https://www.youtube.com/channel/U...-wuOg_p0Ng

They got spanked pretty bad for this massive sandpaper show down as well: https://www.youtube.com/watch?v=NZDCRFi8dKY

Not the same product, but I bet it is the same manufacturing process.

Just my 2 cents...
I have sharpened countless lawnmower blades and cleaned up all sorts of metals and I am still on my first disk.
I couldn't be happier, even if I had paid full price...
Sep 27, 2021
386 Posts
Joined Mar 2007
Sep 27, 2021
texasranger556
Sep 27, 2021
386 Posts
If you need enough to justify the shipping, LVA is the way to go https://www.lehighvalleyabrasives...fd4-5-40zf
Sep 27, 2021
3,867 Posts
Joined Jan 2011
Sep 27, 2021
Loudog504
Sep 27, 2021
3,867 Posts
I've never had any issues with dewalt grinder disk. But not that i use them all day, just here and there.

NOW sand paper on the other hand... Stay away unless its dirt cheap.
Sep 27, 2021
1,072 Posts
Joined Sep 2003
Sep 27, 2021
rockstarjeremy
Sep 27, 2021
1,072 Posts
Is this good on feet?
1
Sep 27, 2021
243 Posts
Joined Dec 2004
Sep 27, 2021
Jeppedy
Sep 27, 2021
243 Posts
Dead. Deal no longer available
Sep 27, 2021
138 Posts
Joined Dec 2016
Sep 27, 2021
nugget-tn
Sep 27, 2021
138 Posts
Quote from rockstarjeremy :
is this good on feet?
šŸ˜‚ šŸ˜† šŸ˜
1

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Sep 27, 2021
10 Posts
Joined Sep 2017
Sep 27, 2021
ScottLoo
Sep 27, 2021
10 Posts
Quote from Jeppedy :
Dead. Deal no longer available
Gone, fast
Sep 27, 2021
422 Posts
Joined May 2011
Sep 27, 2021
HPPTT
Sep 27, 2021
422 Posts
60 grit version available at $3.8

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