Shank Rod
Shank size is 22 x 108mm, and shank end drill rod end connect bit with thread way.Normally R22,R25,R32 for small hole. We manufacture shank end rods in the following threads:R22, R23, R25, R28, R32 mainly focus the stone quarrying such as granite, marble, limestone, sand stone quarries drilling , diameter of hole range from 38mm-50mm at most, Prodrill use the following special heat treament techology to process
- Carburization is a process used to harden the entire rod surface both internally and externally to
strengthen and extend the life of the rod.
- High Frequency Induction is a process where only the thread ends of the rod are hardened to lengthen
thread life.
Shank size |
Length in mm |
Thread type |
Part number |
22X108 |
250 |
R25 |
0250-R25 |
22X108 |
400 |
R25 |
0400-R25 |
22X108 |
1830 |
R25 |
1830-R25 |
22X108 |
2440 |
R25 |
2440-R25 |
22X108 |
3050 |
R25 |
3050-R25 |
22X108 |
250 |
R28 |
0250-R28 |
22X108 |
400 |
R28 |
0400-R28 |
22X108 |
1830 |
R28 |
1830-R28 |
22X108 |
2440 |
R28 |
2440-R28 |
22X108 |
3050 |
R28 |
3050-R28 |
22X108 |
250 |
R32 |
0250-R32 |
22X108 |
400 |
R32 |
0400-R32 |
22X108 |
1830 |
R32 |
1830-R32 |
22X108 |
2440 |
R32 |
2440-R32 |
22X108 |
3050 |
R32 |
3050-R32 |
25X108 |
SAME L. |
R25-R32 |
XXXX-RXX |