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phoinix | Staff 7.1K Views
Mar 30, 2026 1:36 PM

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

$8.95

$17

47% off
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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 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 Notes
About the Poster
Deal Details
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 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

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13 Comments

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Mar 30, 2026 1:47 PM
29 Comments
Joined Feb 2018
Kierankelly619Mar 30, 2026 1:47 PM
29 Comments
Good deal
Mar 30, 2026 3:23 PM
6 Comments
Joined Apr 2025
FuschiaJuice6414Mar 30, 2026 3:23 PM
6 Comments
Make sure the arbor size fits your tool. Bought but would not fit after opening it. Useless
Mar 30, 2026 4:12 PM
1.3K Comments
Joined Nov 2012
darksiderisingMar 30, 2026 4:12 PM
1.3K Comments
Quote from FuschiaJuice6414 View quoted comment :
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 5:18 PM
49 Comments
Joined Apr 2007
T-$hepMar 30, 2026 5:18 PM
49 Comments

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

HD also has it for $8.97 with free delivery https://www.homedepot.com/p/DEWAL.../318904790
3
Mar 31, 2026 1:04 AM
2.7K Comments
Joined Aug 2004
cacadiabloMar 31, 2026 1:04 AM
2.7K Comments
PSA: Don't buy more than you can use before they expire as they can be dangerous.
1
2
Mar 31, 2026 2:15 AM
54 Comments
Joined Nov 2025
SmilingBoundary8787Mar 31, 2026 2:15 AM
54 Comments
Quote from cacadiablo View quoted comment :
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 2:50 AM
1.3K Comments
Joined Nov 2012
darksiderisingMar 31, 2026 2:50 AM
1.3K Comments
Quote from SmilingBoundary8787 View quoted comment :
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 2:55 AM
1.3K Comments
Joined Nov 2012
darksiderisingMar 31, 2026 2:55 AM
1.3K Comments
Quote from cacadiablo View quoted comment :
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 6:50 AM
151 Comments
Joined Nov 2022
CoolRoute8143Mar 31, 2026 6:50 AM
151 Comments
Quote from FuschiaJuice6414 View quoted comment :
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 9:30 AM
390 Comments
Joined Jun 2014
FastZX6RMar 31, 2026 9:30 AM
390 Comments
Deal dead shows $16.88
Mar 31, 2026 10:16 AM
245 Comments
Joined Jun 2017
MoparnjMar 31, 2026 10:16 AM
245 Comments
Quote from FuschiaJuice6414 View quoted comment :
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 1:22 PM
700 Comments
Joined May 2008
wiebel03Mar 31, 2026 1:22 PM
700 Comments
Quote from FastZX6R View quoted comment :
Deal dead shows $16.88
still available at home depot
Mar 31, 2026 1:47 PM
2.4K Comments
Joined Feb 2005
nolifeMar 31, 2026 1:47 PM
2.4K Comments
Quote from Moparnj View quoted comment :
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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