View a Larger Image of Granite Surface Plate 12" x 18" x 3" A Grade

WoodRiver

Granite Surface Plate 12" x 18" x 3" A Grade

$116.99

Backordered
  • Can Only Ship via UPS
  • Usually only found in machine shops, the super flat face of the granite surface plate is ideal for leveling small plane beds, flattening waterstones and general sharpening duties. Simply soak a piece of wet/dry sandpaper in water and lay it down on the stone; the capillary action of the...

    Details

    Usually only found in machine shops, the super flat face of the granite surface plate is ideal for leveling small plane beds, flattening waterstones and general sharpening duties. Simply soak a piece of wet/dry sandpaper in water and lay it down on the stone; the capillary action of the water adheres the paper to the stone, eliminating the need for spray adhesives or PSA sandpaper. When done, wipe clean with a paper towel. This A grade plate measures 12" x 18" x 3", weighs 80 lbs. and comes with a surface map. Plate does not have ledges.

    Features:

    • Stable, ultra flat surface
    • Flat to .00005
    • Moisture and corrosion free
    • Easy to clean

    Articles & Blogs

    Dscn0978 350

    “The American Woodshop” hosts Scott and Suzy Phillips went shopping at Woodcraft to do their annual Christmas Gift Guide video. 

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    Reviews

    5.0 out of 5 stars
    6 Reviews
    1. 5.0 out of 5 stars
      by on

      Good plate for the money!

      I rated this plate on the Woodcraft listing on Amazon, and here's what I said: First off, I did not buy this plate through Amazon, so I will not show as a "Verified Buyer". I bought mine directly from a local Woodcraft Store. As many have sated this plate is not black granite, it's grey and is died black. Is that a major issue, well not according to the literature that I have read on surface plates. Yes there are granites that are better for various reasons, from the pink to the black granites, but come on folks, this is a $109 plate in the store. What do you really expect for this price? I've measured this plate to the best of my instrumentation (tenths DTI) and as best as I can tell it is within .0001 of being flat. Is this a grade A plate? No way for this price. Don't be fooled. Grade AA is flat within 25 millionths of an inch. Grade A within 50, and grade B within 100. 100 millionths of an inch is .0001 (or ten one thousands of an inch) and is considered a tool room plate. AA is a laboratory plate and A is an inspection plate. So a true grade A plate would have to be flat to within .00005 (one half of one ten thousands of an inch), and that is not available anywhere for $109. Also, unless there is a NIST traceable inspection report then anything claimed is worthless in the real world. And this plate does NOT have an NIST traceable inspection report. It has a factory inspection report, from China. Am I implying that it's a lie? No, just that it's not traceable and therefore not quantifiable in the world of standards. Now all of that said, that's relevant to machinists and their needs. If you are just lapping the soles of your planes and honing your plane blades, then .0001 is more than adequate. And even less would still be fine. So here's the bottom line as I see it. This is a solid Grade B plate and is priced accordingly (at least my copy as best as I can tell). But it appears that there are those who have gotten some lemons. It is a Chinese made plate after all, so set your expectations accordingly and be ready to send back a lemon or pick it up in the store.

    2. 5.0 out of 5 stars
      by on

      Any serious woodworker needs a granite s

      I have had one of these granite slabs for about 10 years. I can't imagine how anyone could not use one of these on a daily basis for tool sharpening and touchups. The only downside is the weight but long ago, I built a table/stand for mine. Under the table top, I have several shelves that hold all my Japanese water stones, sharpening papers, etc. Just get one, you won't regret it...

    3. 5.0 out of 5 stars
      by on

      Excellent value!

      Using this in my small machine shop as a flat reference for precision measurements. It is as flat as the 4' x 8' x 1' Starrett granite I use for CMM measuring at work.

    4. 5.0 out of 5 stars
      by on

      Excellent Value

      This is an excellent value for a decent sized surface plate. It has the the disadvantage of being heavy, but as long as you don't plan to move it very often, that's a feature, not a bug

    5. 5.0 out of 5 stars
      by on

      Flat out this thing is awesome!

      I needed something that I knew was flat for sharpening various tools and truing planes etc. This couldn't work any better! It comes with a certificate of accuracy and flatness so I know this is flat. It works like a charm and wish I had bought it much sooner.

    6. 5.0 out of 5 stars
      by on

      If you need a flat surface, this is it

      This granite surface place is perfect for a home shop and came with a certificate of accuracy. Arrived safely packaged in a wooden crate

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