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expiredphoinix | Staff posted Mar 30, 2026 01:36 PM
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expiredphoinix | Staff posted Mar 30, 2026 01:36 PM

DEWALT 3" x 3/8" Diamond Cut Off Blade

$8.95

$17

47% off
Amazon
13 Comments 5,885 Views
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Deal Details
Amazon has DEWALT 3" x 3/8" Diamond Cut Off Blade (DW8530) on sale for $8.97. Shipping is free with Prime or on $35+ orders.

Home Depot also has DEWALT 3" x 3/8" Diamond Cut Off Blade (DW8530) on sale for $8.97. Shipping is free.

Thanks to Deal Hunter phoinix for sharing this deal.

About this item:
  • Long-life: 1,000 plus cuts in 1 in. carbon steel square tube
  • Diamond technology provides extreme durability in metal cutting applications, leading to fewer wheel changes, when compared to thin bonded cut-off wheels
  • 1 wheel, multiple materials: recommended for multiple types of materials including metal, drywall, fiber cement, plastic and fiberglass
  • Precision and reach: designed to maintain a consistent cutting depth through the duration of its life, unlike a bonded abrasive wheel.

Editor's Notes

Written by Nate650 | Staff
  • About this Deal:
    • This offer matches the previous Frontpage Deal.
    • Our research indicates that this deal is $5.02 less (35.9% savings) than the next best available price from a reputable merchant with prices starting from $13.99 at the time of this post.
  • About this Product:
    • Rated 4.7 out of 5 stars at Amazon based on over 430 customer reviews.
  • About this Store:
  • Additional Notes:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by phoinix | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Amazon has DEWALT 3" x 3/8" Diamond Cut Off Blade (DW8530) on sale for $8.97. Shipping is free with Prime or on $35+ orders.

Home Depot also has DEWALT 3" x 3/8" Diamond Cut Off Blade (DW8530) on sale for $8.97. Shipping is free.

Thanks to Deal Hunter phoinix for sharing this deal.

About this item:
  • Long-life: 1,000 plus cuts in 1 in. carbon steel square tube
  • Diamond technology provides extreme durability in metal cutting applications, leading to fewer wheel changes, when compared to thin bonded cut-off wheels
  • 1 wheel, multiple materials: recommended for multiple types of materials including metal, drywall, fiber cement, plastic and fiberglass
  • Precision and reach: designed to maintain a consistent cutting depth through the duration of its life, unlike a bonded abrasive wheel.

Editor's Notes

Written by Nate650 | Staff
  • About this Deal:
    • This offer matches the previous Frontpage Deal.
    • Our research indicates that this deal is $5.02 less (35.9% savings) than the next best available price from a reputable merchant with prices starting from $13.99 at the time of this post.
  • About this Product:
    • Rated 4.7 out of 5 stars at Amazon based on over 430 customer reviews.
  • About this Store:
  • Additional Notes:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by phoinix | Staff

Community Voting

Deal Score
+20
Good Deal
Visit Amazon

Price Intelligence

Model: DeWalt 3 in. D X 3/8 in. Diamond Multi-Material Cut-Off Blade 1 pk

Deal History 

Sale Price
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Current Prices

Sort: Lowest to Highest | Last Updated 4/18/2026, 10:37 PM
Sold By Sale Price
The Home Depot$8.97
Ace Hardware$17.99

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13 Comments

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Mar 30, 2026 01:47 PM
25 Posts
Joined Feb 2018
Kierankelly619Mar 30, 2026 01:47 PM
25 Posts
Good deal
Mar 30, 2026 03:23 PM
5 Posts
Joined Apr 2025
FuschiaJuice6414Mar 30, 2026 03:23 PM
5 Posts
Make sure the arbor size fits your tool. Bought but would not fit after opening it. Useless
Mar 30, 2026 04:12 PM
1,051 Posts
Joined Nov 2012
darksiderisingMar 30, 2026 04:12 PM
1,051 Posts
Quote from FuschiaJuice6414 :
Make sure the arbor size fits your tool. Bought but would not fit after opening it. Useless
What angle grinder do you have?
Mar 30, 2026 05:18 PM
48 Posts
Joined Apr 2007
T-$hepMar 30, 2026 05:18 PM
48 Posts

Our community has rated this post as helpful. If you agree, why not thank T-$hep

HD also has it for $8.97 with free delivery https://www.homedepot.com/p/DEWAL.../318904790
3
Mar 31, 2026 01:04 AM
2,566 Posts
Joined Aug 2004
cacadiabloMar 31, 2026 01:04 AM
2,566 Posts
PSA: Don't buy more than you can use before they expire as they can be dangerous.
1
2
Mar 31, 2026 02:15 AM
53 Posts
Joined Nov 2025
SmilingBoundary8787Mar 31, 2026 02:15 AM
53 Posts
Quote from cacadiablo :
PSA: Don't buy more than you can use before they expire as they can be dangerous.
What do you mean "expire"? How do these go bad (other than wear from usage, of course)?
Mar 31, 2026 02:50 AM
1,051 Posts
Joined Nov 2012
darksiderisingMar 31, 2026 02:50 AM
1,051 Posts
Quote from SmilingBoundary8787 :
What do you mean "expire"? How do these go bad (other than wear from usage, of course)?
The resin bond breaks down over time. Life is usually a few years from manufacturing. It'll be stamped on the center ring. That said, I'm not sure this wheel uses resin bonded abrasive. It's metal with a diamond circumference, right?

Edit: Just looked it up and diamond cut off wheels don't have an expiration date like resin bonded abrasive discs do.
Last edited by darksiderising March 30, 2026 at 08:00 PM.

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Mar 31, 2026 02:55 AM
1,051 Posts
Joined Nov 2012
darksiderisingMar 31, 2026 02:55 AM
1,051 Posts
Quote from cacadiablo :
PSA: Don't buy more than you can use before they expire as they can be dangerous.
This is very true for resin bonded abrasive discs. The resin breaks down and they are usually only rated for a few years from manufacturing date, which will be stamped on the inner ring. It's scary how unknown this is, and I think the companies need to do a better job of advertising this on the packaging. That said, does that apply to this product? Isn't it a metal disc with a diamond circumference? Maybe it still expires if the diamond is resin bonded to the disc or something?

Edit: Just looked it up and diamond cut off wheels don't have an expiration date like resin bonded abrasive discs do.
Last edited by darksiderising March 30, 2026 at 08:00 PM.
1
Mar 31, 2026 06:50 AM
93 Posts
Joined Nov 2022
CoolRoute8143Mar 31, 2026 06:50 AM
93 Posts
Quote from FuschiaJuice6414 :
Make sure the arbor size fits your tool. Bought but would not fit after opening it. Useless
I alway thought these go with drill (or die grinder) arbor adapter like this for 3/8" dia hole. https://www.harborfreight.com/14-...64674.html
Mar 31, 2026 09:30 AM
276 Posts
Joined Jun 2014
FastZX6RMar 31, 2026 09:30 AM
276 Posts
Deal dead shows $16.88
Mar 31, 2026 10:16 AM
238 Posts
Joined Jun 2017
MoparnjMar 31, 2026 10:16 AM
238 Posts
Quote from FuschiaJuice6414 :
Make sure the arbor size fits your tool. Bought but would not fit after opening it. Useless
3/8" arbor is pretty standard for cut-off blades. What cut off tool do you have? All of mine, both electric and pneumatic have 3/8" arbor. Or were you trying to put this on a grinder?
Mar 31, 2026 01:22 PM
698 Posts
Joined May 2008
wiebel03Mar 31, 2026 01:22 PM
698 Posts
Quote from FastZX6R :
Deal dead shows $16.88
still available at home depot
Mar 31, 2026 01:47 PM
2,383 Posts
Joined Feb 2005
nolifeMar 31, 2026 01:47 PM
2,383 Posts
Quote from Moparnj :
3/8" arbor is pretty standard for cut-off blades. What cut off tool do you have? All of mine, both electric and pneumatic have 3/8" arbor. Or were you trying to put this on a grinder?
The other common sizes are 10mm (3/8) or 7/16 unless OP is trying to use this in an angle grinder which is normally 5/8. You can check if your specific die grinder has a switchable 7/16 or 3/8 bushing included. Even my cheap Ryobi can do either.
Last edited by nolife March 31, 2026 at 06:55 AM.

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