Manufactured from high grade steel alloy???????
Technical Specification:
| PART NO. | SIZE (inches) | LENGTH (mm) |
| BLPS12516 | 5/16 | 38 |
| BLPS1238 | 3/8 | |
| BLPS12716 | 7/16 | |
| BLPS1212 | 1/2 | |
| BLPS12916 | 9/16 | |
| BLPS1258 | 5/8 | |
| BLPS121116 | 11/16 | |
| BLPS1234 | 3/4 | |
| BLPS121316 | 13/16 | 38 |
| BLPS1278 | 7/8 | |
| BLPS121516 | 15/16 | 44 |
| BLPS121 | 1 | |
| BLPS121116 | 1^1/16 | |
| BLPS12118 | 1^!/8 | |
| BLPS121316 | 1^3/16 | |
| BLPS12114 | 1^!/4 |