Grit Table / diamond / Poltava (PDT) Expert resin-bonded diamond

Product, maker figures

Poltava (PDT) Expert resin-bonded diamond

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.

Particle sizemicrons, log
1005030201053210.50.3
coarserfiner
inkmeasured or standardmaker figureour estimate
shapeknown distributionpoint, spread unknown
60 (250/200)Maker-published
Poltava (PDT)
225 µm

Range 200 to 250 µm. PDT grain 250/200 micron (the X/Y pair IS the published band); central is its mean.

spread 200 to 250 µm · reference scale about #70

80 (200/160)Maker-published
Poltava (PDT)
180 µm

Range 160 to 200 µm. PDT grain 200/160 micron (the X/Y pair IS the published band); central is its mean.

spread 160 to 200 µm · reference scale about #90

100 (160/125)Maker-published
Poltava (PDT)
142.5 µm

Range 125 to 160 µm. PDT grain 160/125 micron (the X/Y pair IS the published band); central is its mean.

spread 125 to 160 µm · reference scale about #110

160 (125/100)Maker-published
Poltava (PDT)
112.5 µm

Range 100 to 125 µm. PDT grain 125/100 micron (the X/Y pair IS the published band); central is its mean.

spread 100 to 125 µm · reference scale about #130

225 (100/80)Maker-published
Poltava (PDT)
90 µm

Range 80 to 100 µm. PDT grain 100/80 micron (the X/Y pair IS the published band); central is its mean.

spread 80 to 100 µm · reference scale about #160

240 (80/63)Maker-published
Poltava (PDT)
71.5 µm

Range 63 to 80 µm. PDT grain 80/63 micron (the X/Y pair IS the published band); central is its mean.

spread 63 to 80 µm · reference scale about #200

285 (63/50)Maker-published
Poltava (PDT)
56.5 µm

Range 50 to 63 µm. PDT grain 63/50 micron (the X/Y pair IS the published band); central is its mean.

spread 50 to 63 µm · reference scale about #240

300 (60/40)Maker-published
Poltava (PDT)
50 µm

Range 40 to 60 µm. PDT grain 60/40 micron (the X/Y pair IS the published band); central is its mean.

spread 40 to 60 µm · reference scale about #270

325 (50/40)Maker-published
Poltava (PDT)
45 µm

Range 40 to 50 µm. PDT grain 50/40 micron (the X/Y pair IS the published band); central is its mean.

spread 40 to 50 µm · reference scale about #290

550 (40/28)Maker-published
Poltava (PDT)
34 µm

Range 28 to 40 µm. PDT grain 40/28 micron (the X/Y pair IS the published band); central is its mean.

spread 28 to 40 µm · reference scale about #360

650 (28/20)Maker-published
Poltava (PDT)
24 µm

Range 20 to 28 µm. PDT grain 28/20 micron (the X/Y pair IS the published band); central is its mean.

spread 20 to 28 µm · reference scale about #500

1100 (20/14)Maker-published
Poltava (PDT)
17 µm

Range 14 to 20 µm. PDT grain 20/14 micron (the X/Y pair IS the published band); central is its mean.

spread 14 to 20 µm · reference scale about #680

1500 (14/10)Maker-published
Poltava (PDT)
12 µm

Range 10 to 14 µm. PDT grain 14/10 micron (the X/Y pair IS the published band); central is its mean.

spread 10 to 14 µm · reference scale about #950

1700 (10/7)Maker-published
Poltava (PDT)
8.5 µm

Range 7 to 10 µm. PDT grain 10/7 micron (the X/Y pair IS the published band); central is its mean.

spread 7 to 10 µm · reference scale about #1400

3000 (7/5)Maker-published
Poltava (PDT)
6 µm

Range 5 to 7 µm. PDT grain 7/5 micron (the X/Y pair IS the published band); central is its mean.

spread 5 to 7 µm · reference scale about #2200

4000 (5/3)Maker-published
Poltava (PDT)
4 µm

Range 3 to 5 µm. PDT grain 5/3 micron (the X/Y pair IS the published band); central is its mean.

spread 3 to 5 µm · reference scale about #3000

5000 (3/2)Maker-published
Poltava (PDT)
2.5 µm

Range 2 to 3 µm. PDT grain 3/2 micron (the X/Y pair IS the published band); central is its mean.

spread 2 to 3 µm · reference scale about #4800

10000 (2/1)Maker-published
Poltava (PDT)
1.5 µm

Range 1 to 2 µm. PDT grain 2/1 micron (the X/Y pair IS the published band); central is its mean.

spread 1 to 2 µm · reference scale about #7050

15000 (1/0)Maker-published
Poltava (PDT)
0.5 µm

Range 0.1 to 1 µm. PDT grain 1/0 micron (the X/Y pair IS the published band); central is its mean.

spread 0.1 to 1 µm · reference scale about #13050