Diamond File Set – DiamondCore Tools
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Diamond File Set

$29.00 $32.00


Got a little spot on your pottery that needs sanding? Reach for our easy-to-handle Diamond File Set! This set includes both our J11 and J12 Diamond Files, the perfect tools for quick material removal. With two tools and four grits to choose from, these smaller files can make a big difference.

J11 Diamond File 60/120 Grit

  • 60 grit (coarse) for rough heavy clay or glaze
  • 120 grit (medium) general purpose
  • Full file size is 6.25 inches by 1/4 inch
  • Made of beautiful hardwood in the USA
  • Wood grain may vary

J12 Diamond File 200/400 Grit

  • 200 grit (fine) for smoothing
  • 400 grit (extra fine) for smoothing
  • Full file size is 6.25 inches by 1/4 inch
  • Made of beautiful hardwood in the USA
  • Wood grain may vary


    • Removing sharp edges on bisque or high-fired clay
    • Great for removing sharp glaze edges or chips


    • Can be used wet or dry
    • Much easier and faster than other type of types of abrasive


    • Use all safety precautions
    • Keep out of the reach of children

    Customer Reviews

    Based on 1 review Write a review

    Customer Reviews

    Based on 2 reviews
    DiamondCore saved my show!!

    I had gotten this set as part of the ClayShare Combo of August 2023. These are a nice size to throw into a vending tool bag of you sell pottery at Craft Shows. But they proved their real “value” during this past weekend’s 2-day on-site travel show. As I was unpacking inventory, 6 of my best pieces were smashed and broken— of those, 2 were salvageable and even sold (full disclosure of course!) thanks to these tools!! I was able to sand the broken edge smooth on-site with just this and a cup of water in only a few min! The end product was smooth and still looked great! Total life saver! I may need a second set!

    Thank you, AJ, for sharing your review! We're sorry to hear your pieces were broken but glad to hear our sanding files helped salvage a few — even for a sale. Good save!

    Erika A.
    Just what I needed for small spaces

    I love all the Diamond sanding pads that I've bought in the last couple of years, but there are just some nooks and crannies I couldn't get to with the regular-sized pads (like the joints of mug handles, small carved areas, and pitcher/teapot spouts), so I jumped at the chance to purchase the Diamond sanding file set...and these little tools are just what I needed for small, hard to reach spaces that need smoothing. I even got a set for a friend! So far, I've "finished" off the attachments of eight mugs and spouts of two pitchers to where they'll be optimal for customers to handle. The only thing more I'd want is for perhaps sanding pads on a rounded surface instead of the squared edges these files have.