Eisen, Japan
Eisen EP Series Pin Gauge

Made in Japan
Manufacturer: Eisen Co., Ltd.
Model: EP Series
Pin gauge set with minimum nominal dimensions starting from 0.05 mm and in increments of 0.01 mm
About the Series

Precision and specifications (Class 0)
| Nominal size (mm) | Length (mm) | tolerance | Circularity | Diameter difference |
|---|---|---|---|---|
| 0.20mm to 0.99mm | 40.00 | ±0.5 μm | 0.3 μm | 0.15 μm |
| 1.00mm to 10.00mm | 50.00 | ±0.5 μm | 0.3 μm | 0.15 μm |
All hardness is HRC58 or higher
Precision and specifications (Class 1)
| Nominal size (mm) | Length (mm) | tolerance | Circularity | Diameter difference |
|---|---|---|---|---|
| 0.05mm to 0.99mm | 40.00 | ±1 μm | 0.8 μm | 0.8 μm |
| 1.00mm to 10.00mm | 50.00 | ±1 μm | 0.8 μm | 0.8 μm |
| 10.01mm to 20.00mm | 50.00 | ±1.5 μm | 1.3 μm | 1.3 μm |
All hardness is HRC58 or higher.
Nominal dimensions are shown on the plastic case up to 0.99 mm.
For dimensions 1.00 mm or more, the nominal dimensions are laser engraved on the pin gauge.
Grade 0 comes with actual measurement data
Series Details
| Set number (item number) | Jumping dimensions | Set contents Nominal dimensions (mm) | Number of sets |
|---|---|---|---|
| EP-00 | 0.01 mm | 0.05 0.06 … 0.19 0.20 | 16 |
| EP-0A | 0.01 mm | 0.20 0.21 … 0.49 0.50 | 31 |
| EP-0B | 0.01 mm | 0.50 0.51 … 0.99 1.00 | 51 |
| EP-1A | 0.01 mm | 1.00 1.01 … 1.49 1.50 | 51 |
| EP-1B | 0.01 mm | 1.50 1.51 … 1.99 2.00 | 51 |
| EP-2A | 0.01 mm | 2.00 2.01 … 2.49 2.50 | 51 |
| EP-2B | 0.01 mm | 2.50 2.51 … 2.99 3.00 | 51 |
| EP-3A | 0.01 mm | 3.00 3.01 … 3.49 3.50 | 51 |
| EP-3B | 0.01 mm | 3.50 3.51 … 3.99 4.00 | 51 |
| EP-4A | 0.01 mm | 4.00 4.01 … 4.49 4.50 | 51 |
| EP-4B | 0.01 mm | 4.50 4.51 … 4.99 5.00 | 51 |
| EP-5A | 0.01 mm | 5.00 5.01 … 5.49 5.50 | 51 |
| EP-5B | 0.01 mm | 5.50 5.51 … 5.99 6.00 | 51 |
| EP-6A | 0.01 mm | 6.00 6.01 … 6.49 6.50 | 51 |
| EP-6B | 0.01 mm | 6.50 6.51 … 6.99 7.00 | 51 |
| EP-7A | 0.01 mm | 7.00 7.01 … 7.49 7.50 | 51 |
| EP-7B | 0.01 mm | 7.50 7.51 … 7.99 8.00 | 51 |
| EP-8A | 0.01 mm | 8.00 8.01 … 8.49 8.50 | 51 |
| EP-8B | 0.01 mm | 8.50 8.51 … 8.99 9.00 | 51 |
| EP-9A | 0.01 mm | 9.00 9.01 … 9.49 9.50 | 51 |
| EP-9B | 0.01 mm | 9.50 9.51 … 9.99 10.00 | 51 |
| EP-10A | 0.01 mm | 10.00 10.01 … 10.49 10.50 | 51 |
| EP-10B | 0.01 mm | 10.50 10.51 … 10.99 11.00 | 51 |
| EP-11A | 0.01 mm | 11.00 11.01 … 11.49 11.50 | 51 |
| EP-11B | 0.01 mm | 11.50 11.51 … 11.99 12.00 | 51 |
| EP-12A | 0.01 mm | 12.00 12.01 … 12.49 12.50 | 51 |
| EP-12B | 0.01 mm | 12.50 12.51 … 12.99 13.00 | 51 |
| EP-13A | 0.01 mm | 13.00 13.01 … 13.49 13.50 | 51 |
| EP-13B | 0.01 mm | 13.50 13.51 … 13.99 14.00 | 51 |
| EP-14A | 0.01 mm | 14.00 14.01 … 14.49 14.50 | 51 |
| EP-14B | 0.01 mm | 14.50 14.51 … 14.99 15.00 | 51 |
| EP-15A | 0.01 mm | 15.00 15.01 … 15.49 15.50 | 51 |
| EP-15B | 0.01 mm | 15.50 15.51 … 15.99 16.00 | 51 |
| EP-16A | 0.01 mm | 16.00 16.01 … 16.49 16.50 | 51 |
| EP-16B | 0.01 mm | 16.50 16.51 … 16.99 17.00 | 51 |
| EP-17A | 0.01 mm | 17.00 17.01 … 17.49 17.50 | 51 |
| EP-17B | 0.01 mm | 17.50 17.51 … 17.99 18.00 | 51 |
| EP-18A | 0.01 mm | 18.00 18.01 … 18.49 18.50 | 51 |
| EP-18B | 0.01 mm | 18.50 18.51 … 18.99 19.00 | 51 |
| EP-19A | 0.01 mm | 19.00 19.01 … 19.49 19.50 | 51 |
| EP-19B | 0.01 mm | 19.50 19.51 … 19.99 20.00 | 51 |
- For EP-00, the gauge length is 5mm and the handle length is 25mm.
- All sizes from φ0.2 to φ10 are master pin gauges (class 0). We also manufacture special sizes.
- φ10.01 and above are standard pin gauges (class 1).
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