Eisen Pin Gauge Three-wire gauges TW series – for measuring screws and are detachable from the chains by MSP Metrology (M) Sdn Bhd from Eisen Japan.
| Series | Tolerance | Roundness/Cylindricity | Size Variation | HRC Hardness | |
| TW | ±2.0μm | 0.5μm | 0.5μm | 58 HRC or greater | |
| TWW | 90.6 HRA | ||||
| TWZ | 89 HRA | ||||
(inspection results document)
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Details of series – TW Series
| Set No. | Wires Dia (mm) |
Kind, pitch or number of thread of applied screws | ||||||||
| Metric | Unify | PPT | ||||||||
| Pitch(mm) | Number of Thread | Number of Thread | ||||||||
| TW – 01 | 0.1155 | 0.2 | – | – | ||||||
| TW – 02 | 0.1443 | 0.25 | – | – | ||||||
| TW – 03 | 0.1732 | 0.3 | 80 | – | ||||||
| TW – 04 | 0.2021 | 0.35 | 72 | – | ||||||
| TW – 05 | 0.2309 | 0.4 | 64 | – | ||||||
| TW – 06 | 0.2598 | 0.45 | 56 | – | ||||||
| TW – 07 | 0.2887 | 0.5 | 48 | – | ||||||
| TW – 08 | 0.3464 | 0.6 | 44.4 | – | ||||||
| TW – 09 | 0.4330 | 0.75 | – | – | ||||||
| TW – 10 | 0.5196 | – | 28 | 28 | ||||||
| TW – 11 | 0.5774 | 1 | 24 | – | ||||||
| TW – 12 | 0.7217 | 1.25 | 20 | – | ||||||
| TW – 13 | 0.7954 | – | 18 | – | ||||||
| TW – 14 | 0.8949 | 1.5 | 16 | – | ||||||
| TW – 15 | 1.0227 | 1.75 | 14 | 14 | ||||||
| TW – 16 | 1.1547 | 2 | 13 | – | ||||||
| TW – 17 | 1.1932 | – | 12 | – | ||||||
| TW – 18 | 1.3016 | – | 11 | – | ||||||
| TW – 19 | 1.4434 | 2.5 | 10 | – | ||||||
| TW – 20 | 1.5908 | – | 9 | – | ||||||
| TW – 21 | 1.7897 | 3 | 8 | – | ||||||
| TW – 22 | 2.0454 | 3.5 | 7 | – | ||||||
| TW – 23 | 2.3863 | 4 | 6 | – | ||||||
| TW – 24 | 2.5981 | 4.5 | – | – | ||||||
| TW – 25 | 2.8868 | 5 | 5 | – | ||||||
| TW – 26 | 3.1817 | 5.5 | 4 1/2 | – | ||||||
| TW – 27 | 3.5794 | – | 4 | – | ||||||
| TW – 28 | 0.4041 | 0.7 | 36 | – | ||||||
| TW – 29 | 0.4619 | 0.8 | 32 | – | ||||||
| TW – 30 | 0.7536 | – | – | – | ||||||
| TW – 31 | 3.4641 | 6 | – | – | ||||||
Details of series – TWW Series
| Set No. | Wires Dia (mm) |
Kind, pitch or number of thread of applied screws | ||||||||
| Metric | Unify | PPT | ||||||||
| Pitch(mm) | Number of Thread | Number of Thread | ||||||||
| TW – 01 | 0.1155 | 0.2 | – | – | ||||||
| TW – 02 | 0.1443 | 0.25 | – | – | ||||||
| TW – 03 | 0.1732 | 0.3 | 80 | – | ||||||
| TW – 04 | 0.2021 | 0.35 | 72 | – | ||||||
| TW – 05 | 0.2309 | 0.4 | 64 | – | ||||||
| TW – 06 | 0.2598 | 0.45 | 56 | – | ||||||
| TW – 07 | 0.2887 | 0.5 | 48 | – | ||||||
| TW – 08 | 0.3464 | 0.6 | 44.4 | – | ||||||
| TW – 09 | 0.4330 | 0.75 | – | – | ||||||
| TW – 10 | 0.5196 | – | 28 | 28 | ||||||
| TW – 11 | 0.5774 | 1 | 24 | – | ||||||
| TW – 12 | 0.7217 | 1.25 | 20 | – | ||||||
| TW – 13 | 0.7954 | – | 18 | – | ||||||
| TW – 14 | 0.8949 | 1.5 | 16 | – | ||||||
| TW – 15 | 1.0227 | 1.75 | 14 | 14 | ||||||
| TW – 16 | 1.1547 | 2 | 13 | – | ||||||
| TW – 17 | 1.1932 | – | 12 | – | ||||||
| TW – 18 | 1.3016 | – | 11 | – | ||||||
| TW – 19 | 1.4434 | 2.5 | 10 | – | ||||||
| TW – 20 | 1.5908 | – | 9 | – | ||||||
| TW – 21 | 1.7897 | 3 | 8 | – | ||||||
| TW – 22 | 2.0454 | 3.5 | 7 | – | ||||||
| TW – 23 | 2.3863 | 4 | 6 | – | ||||||
| TW – 24 | 2.5981 | 4.5 | – | – | ||||||
| TW – 25 | 2.8868 | 5 | 5 | – | ||||||
| TW – 26 | 3.1817 | 5.5 | 4 1/2 | – | ||||||
| TW – 27 | 3.5794 | – | 4 | – | ||||||
| TW – 28 | 0.4041 | 0.7 | 36 | – | ||||||
| TW – 29 | 0.4619 | 0.8 | 32 | – | ||||||
| TW – 30 | 0.7536 | – | – | – | ||||||
| TW – 31 | 3.4641 | 6 | – | – | ||||||
