Specifications
Brand: JAPAN SEALS
Materials: S2 alloy steel
Head style: pentacle
Type of shank: 6.35mm / 1/4 in. hex
Net weight: (approx.) 71g
Dimensions:
| Size | Size of pentacle (mm) | Length (mm) |
| T10 | 2.5 | 50 / 2 in. |
| T15 | 2.95 | 50 / 2 in. |
| T20 | 3.4 | 50 / 2 in. |
| T25 | 3.9 | 50 / 2 in. |
| T27 | 4.1 | 50 / 2 in. |
| T30 | 4.95 | 50 / 2 in. |
| T40 | 5.95 | 50 / 2 in. |




