Brief Introduction Of Thread Drilling Bit
Thread type: R25 R28, R38,T38,T45,T51, ST58, GT60, ST68, ED68
Diameter: 41mm to 152mm
Face shape: Flat, Drop Center, New Drop Center
Skirt Design: Straight, Retrac, Straightrac
| Button Type | Applications | Button Type | Applications |
| Spherical Button | • Universal button | Parabolic Button | • Universal button |
| • Wearing resistance good | • Fast penetration | ||
| • Best suited to hard ground | • Best suited to medium to hard rock | ||
| • 27,000-48,000PSI (180 - 320 Mpa) | • 15,000-25,000PSI (100 - 170 Mpa) | ||
| • Abrasive to very abrasive | • Mildly abrasive ground | ||
| Conical Button | • Fast penetration | Ballistic Button | • Fast penetration |
| • Best suited for smaller diameter bits | • Best suited to soft rock | ||
| • Best suited for all non-abrasive ground types | • 10,000-20,000PSI (70 - 140 Mpa) | ||
| • Non abrasive ground |
The optimal performance of LEANOMS Thread Drilling Bit includes:
1. High productivity
2. Longer service life
3. Low energy consumption
4. Faster Drilling Speed
Effiency increased by 20%-30%, which means the higher drilling output will deliver a much higher profit for you.
Our Mission:
At LEANOMS, We are aiming to be drillers’ first choice, in that our ambition to be the leader in rock drilling tools.
Aiming to focus on solving key issues for our clients, as well as supplying the most cost-effective rock drilling solutions for their business needs.
We help worldwide drilling partners reduce running costs and increase drilling efficiency and effectiveness.
There are three types of Thread Drilling Bit heads: flat face、drop center and new drop center. Which one is better?
Flat Thread Drilling Bit has a relatively high drilling efficiency because of their shape;
A drop center is located in the middle of the drop center thread botton bit. The center plays a fixed role during drilling process, enabling it to be drilled in a straight line.
As a result, we are unable to determine which effect is better. To analyze the specific issues, we need to combine various geological and construction conditions. If the orientation needs to be kept vertical, recommend to use a drop center.









