Diablo 3 in. x 21 in. 120-Grit Sanding Belt (5-Pack)-DCB321120S05G - The Home Depot
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Model # DCB321120S05G

Internet # 202830859

Store SKU # 271162

3 in. x 21 in. 120-Grit Sanding Belt (5-Pack)

Diablo 3 in. x 21 in. 120-Grit Sanding Belt (5-Pack)

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$9.97 / package


Model # DCB321120S05G

Internet # 202830859

Store SKU # 271162

Diablo's 3 in. x 21 in. 120-Grit sanding belts include break-through innovations that improve performance, extend sanding life and increase productivity. Featuring a premium zirconium blend, these belts remove material faster than other sanding belts and offer an extra long sanding life. Clog-SHIELD, Diablo's own blend of grinding agents, reduces loading thus maximizing productivity. The superior grit-to-backing bond, ENDURA-BOND, provides Diablo's belts with longer life and extreme durability.

  • Premium zirconium blend is a superior quality formulation designed for fast material removal and long sanding life
  • Clog-SHIELD, a proprietary blend of grinding agents that reduce pitch build-up and clogging
  • ENDURA-BOND, a specialized high strength resin provides superior grit-to-backing bond for extreme durability
  • Tool usage - belt sanders
  • Materials - wood, metal and plastics
  • Recommended use - final sanding applications


Assembled Depth (in.) 
2.76 in 
Assembled Height (in.) 
10.43 in 
Assembled Width (in.) 
3.15 in 
Product Length (in.) 
Product Width (in.) 
Size (in.) 
Color Family 
Package Quantity 
Power Tool Accessory Type 
Sanding/Grinding/Polishing Accessory 
Power Tool Product Type 
Power Tool Accessory 
Sanding, Grinding and Polishing Accessory Type 
Sandpaper Type 
Zirconium Blend 
Tools Product Type 
Power Tool 


Rated 3.8 out of 5 by 63 reviewers.
Rated 5.0 out of 5.0 by Sanding belts So far this seems to be the best, longest lasting sanding belt I have ever used, and I have been through enough of them to wear out the steel support pad on the sole-plate of my 55 Year old sander. January 27, 2015
Rated 4.0 out of 5.0 by Broke in no time Piece of high-temperature tape holding the ends together is vastly more inferior than the typical way the ends of a sanding belt are bonded together. The belts stayed on the brand new Black and Decker and they ran straight with an adjustment of the sander, but 3 belts broke before I had finished 1/3 of a single garage door (one belt per 2 panels), despite being very gentle and applying little pressure. I returned them all to return to vendor. December 31, 2014
Rated 5.0 out of 5.0 by Rough experience I recently needed to replace that gritty stuff you use to scratch the surface of most things. Immediately what came to mind was Home Depot. Sure enough when I arrived at my local store I was asked if there was anything I needed help with. I explained my issue with current life situation and the associate identified with me and my situation. Ultimately my choice came down to price. December 30, 2014
Rated 4.0 out of 5.0 by As Advertised Works as advertised. Decent price for product. Would recommend. August 5, 2014
Rated 3.0 out of 5.0 by Its not bad, but the sanding strength does not hold up very long. Have to be careful when loading it onto sander. Improper loading will ruin belt quickly. However, it does a good job of sanding, but its sanding ability fades just a bit too quickly for me. April 17, 2012
Rated 4.0 out of 5.0 by Very good The belts work well. I sanded paper faced parquet floor which is red oak with a plastic tape on top. The belts held up, did clog to quickly and did not slip. Recommended March 28, 2014
Rated 5.0 out of 5.0 by awesome belts! these diablo belts are a great product! these last for a while unlike most other brands March 18, 2014
Rated 4.0 out of 5.0 by Works like most sanding belts. There is nothing special about this. It works as intended. March 5, 2014
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