Grit Table / diamond / Poltava (PDT) Expert resin-bonded diamond
Product, maker figures
Diamond
The maker publishes these figures. A single value per grade, no distribution given, so each is drawn as a point.
Each grade below shows its size in microns, its spread (the published distribution, where a maker or standard gives one; most makers publish none), and where that size lands on the reference scale, a shared yardstick for reading grit numbers across makers.
Range 200 to 250 µm. PDT grain 250/200 micron (the X/Y pair IS the published band); central is its mean.
Range 160 to 200 µm. PDT grain 200/160 micron (the X/Y pair IS the published band); central is its mean.
Range 125 to 160 µm. PDT grain 160/125 micron (the X/Y pair IS the published band); central is its mean.
Range 100 to 125 µm. PDT grain 125/100 micron (the X/Y pair IS the published band); central is its mean.
Range 80 to 100 µm. PDT grain 100/80 micron (the X/Y pair IS the published band); central is its mean.
Range 63 to 80 µm. PDT grain 80/63 micron (the X/Y pair IS the published band); central is its mean.
Range 50 to 63 µm. PDT grain 63/50 micron (the X/Y pair IS the published band); central is its mean.
Range 40 to 60 µm. PDT grain 60/40 micron (the X/Y pair IS the published band); central is its mean.
Range 40 to 50 µm. PDT grain 50/40 micron (the X/Y pair IS the published band); central is its mean.
Range 28 to 40 µm. PDT grain 40/28 micron (the X/Y pair IS the published band); central is its mean.
Range 20 to 28 µm. PDT grain 28/20 micron (the X/Y pair IS the published band); central is its mean.
Range 14 to 20 µm. PDT grain 20/14 micron (the X/Y pair IS the published band); central is its mean.
Range 10 to 14 µm. PDT grain 14/10 micron (the X/Y pair IS the published band); central is its mean.
Range 7 to 10 µm. PDT grain 10/7 micron (the X/Y pair IS the published band); central is its mean.
Range 5 to 7 µm. PDT grain 7/5 micron (the X/Y pair IS the published band); central is its mean.
Range 3 to 5 µm. PDT grain 5/3 micron (the X/Y pair IS the published band); central is its mean.
Range 2 to 3 µm. PDT grain 3/2 micron (the X/Y pair IS the published band); central is its mean.
Range 1 to 2 µm. PDT grain 2/1 micron (the X/Y pair IS the published band); central is its mean.
Range 0.1 to 1 µm. PDT grain 1/0 micron (the X/Y pair IS the published band); central is its mean.