
| Overall length | Thread length T | hread+Neck length | Shank length | Shank dia. | Size of square | Length of square | ||||||
| T Simple | Thread Ins | pecti | on Tools | L | ℓ | ℓn | ℓs | Ds | K | ℓk | ||
| Size | Class | Code | L (mm) | ℓ (mm) | ℓn (mm) | ℓs (mm) | Ds (mm) | K (mm) | ℓk (mm) | Type | Stock | |
| 9/16-12UNC | For Go For Not-go | 2B | ITM2U09SG ITM2U09SN | 95 | 26 17 | 47 | 48 | 12.5 | 10 | 13 | 3 4 | △ |
| 9/16-18UNF | For Go | 2B | ITM2U09OG | 95 | 20 | 47 | 48 | 125 | 10 | 13 | 3 | △ |
| For Not-go | ITM2U09ON | 13 | . | 4 | ||||||||
| 5/8-11UNC | For Go | 2B | ITM2U10UG | 95 | 26 | 47 | 48 | 125 | 10 | 13 | 3 | △ |
| For Not-go | ITM2U10UN | 17 | . | 4 | ||||||||
| 5/818UNF | For Go | 2B | ITM2U10OG | 95 | 20 | 47 | 48 | 125 | 10 | 13 | 3 | △ |
| - | For Not-go | ITM2U10ON | 13 | . | 4 |