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

$3.49
+12 Deal Score
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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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This comment has been rated as unhelpful by Slickdeals users
Joined Jan 2010
L6: Expert
1,082 Posts
388 Reputation
#2
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...
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This comment has been rated as unhelpful by Slickdeals users
Joined Nov 2012
L4: Apprentice
306 Posts
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Original Poster
#3
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...
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This comment has been rated as unhelpful by Slickdeals users
Joined Mar 2007
L4: Apprentice
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#4
If you need enough to justify the shipping, LVA is the way to go https://www.lehighvalleyabrasives...fd4-5-40zf
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This comment has been rated as unhelpful by Slickdeals users
Joined Jan 2011
L7: Teacher
2,505 Posts
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#5
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.
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Joined Sep 2003
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#6
Is this good on feet?
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This comment has been rated as unhelpful by Slickdeals users
Joined Dec 2004
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#7
Dead. Deal no longer available
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This comment has been rated as unhelpful by Slickdeals users
Joined Dec 2016
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#8
Quote from rockstarjeremy :
is this good on feet?
😂 😆 😝
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This comment has been rated as unhelpful by Slickdeals users
Joined Sep 2017
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#9
Quote from Jeppedy :
Dead. Deal no longer available
Gone, fast
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Joined May 2011
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#10
60 grit version available at $3.8
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