Sansung rock drilling thread button bits are widely used in all kinds of mining, drilling, quarrying, engineering, construction, water well drilling, oil exploring industries etc.
Our thread button bits are made with high quality of best quality alloy steel bar and tungsten carbides with superior wear resistance and impact toughness superior, through heat treatment so that it can withstand the toughest rock drilling demands, and transmit intensive impact energy into the rock with the least possible loss of energy.
| Thread Button Bit | Diameter | Carbide size(mm) | Flushing hole | Weight |
| mm | in | Front | Gauge | Front | Side | (kg) |
| Qty×size | Qty×size |
T51(2") standard body 
| 76 | 3 | 4×12 | 8×12 | 2 | 1 | 3.62 |
| 89 | 3 1/2 | 6×12 | 8×14 | 2 | 2 | 4.48 |
| 102 | 4 | 7×12 | 8×14 | 4 | 1 | 5.26 |
| 115 | 4 1/2 | 8×12 | 8×14 | 4 | 1 | 7.62 |
| 127 | 5 | 9×12 | 8×16 | 4 | 1 | 8.58 |
T51(2") retrac body 
| 76 | 3 | 4×12 | 8×12 | 2 | 1 | 4.22 |
| 89 | 3 1/2 | 6×12 | 8×14 | 2 | 2 | 5.08 |
| 102 | 4 | 7×12 | 8×14 | 4 | 1 | 5.86 |
| 115 | 4 1/2 | 8×12 | 8×14 | 4 | 1 | 8.12 |
| 127 | 5 | 9×12 | 8×16 | 4 | 1 | 9.18 |
Reaming bit 
| 152 | 6 | 2×14 | 20×14 | 5 | 2 | - |
| Drill rod | L |
| mm | ft | in |
Extension rod T51-round 51mm-T51 
| 3660 | 12 | – |
| 4270 | 14 | – |
| 6100 | 20 | – |
MF rod T51-round 51mm-T51 
| 1525 | 5 | – |
| 1830 | 6 | – |
| 3660 | 12 | – |
| 4270 | 14 | – |
| Couplings (T51) | L | D |
| mm | inch | mm | inch |
T51-T51 
| 235 | 9 1/4 | 72 | 2 5/6 |
T51-T51
| 235 | 9 1/4 | 77 | 3 |
T45-T51
| 240 | 9 1/2 | 72 | 2 5/6 |
