Grit Grade Guide for DuraDISC 5" Carbide Sanding Disc (DB-DS5)

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By DuraGRIT Support

updated 22 days ago

Thank you for for your interest in the 5" DuraDisc carbide sanding disc. (DB-DS5)


To assist you with your selection of the appropriate 5" sanding disc, please note the intended uses based on grit grades:


46 grit (DB-DS5-046): 

  • rapid material removal of hard and soft wood
  • grinding boat hulls for refinishing 
  • removal of old, dried, non-sticky finishes such as flaky paint
  • levelling of concrete patches in garage floor crack repair etc


60 grit (DB-DS5-060):

  • rapid removal of wood prior to finishing with finer grades
  • sanding composites and laminates
  • refinishing cedar decks, docks and decks

    On Belt/Bench Sander:
  • smoothing saw cuts (on wood stock across grain without tearing) 
  • rounding corners of boards (hard soft woods, particle board, MDF, laminates etc)
  • smoothing, adjusting and rounding ceramic wall tiles for fitting of tile in awkward spaces


80 grit (DB-DS5-080):

On Random Orbital Sander:

  • smoothing less rough wood surfaces 
  • natural step up in fine finish from 60 grit


Are DuraGRIT sanding discs and sanders equivalent in grit grade as ordinary sanding products?


DuraGRIT carbide products are graded by the US Standard Mesh size for each grit grain size, the same way ordinary sanding products are. The difference is as follows: 


Carbide grains are sharper than the more rounded sandpaper grits and appear may more aggressive than an equivalent sandpaper product of the same grit number. Also, as soon as you start using an ordinary sandpaper product, the grit starts wearing and degrading, grits break loose and backing paper tears. At the end of a large sanding project, you will be using a finer grit grade and will have an overall, uneven sanded finish.


DuraGRIT carbide discs and blocks, do not degrade in the same way. Grit doesn't come loose and the steel backing doesn't tear. At the end of a large sanding project, you will still be sanding with the same grit grade you started with and will have a consistent overall sanded finish to the job.  To sand at a smoother grade, it is necessary to switch to a higher grit number.  Some users have indicated to us that when they discovered that their DuraDISCs lasted such a long time, they mounted their two favorite grit grade discs on two ROSanders and switched sanders, not discs.

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