Glossary
DTH Hammer (Down-The-Hole Hammer)
A percussive drilling tool installed at the bottom of the drill string. It delivers high impact energy to the drill bit, enabling efficient rock penetration.
DTH Bit
The cutting component attached to a DTH hammer. It crushes and fractures rock during drilling. Available in various designs for different rock types.
Percussion Drilling
A drilling method using repeated impact forces to break rock. Commonly used in mining, quarrying, and water well drilling.
Air Consumption
The volume of compressed air required to operate a DTH hammer efficiently, usually measured in cubic meters per minute (m³/min).
Penetration Rate (ROP – Rate of Penetration)
The speed at which the drill bit advances through rock, usually measured in meters per hour (m/h).
Shank Adapter
The connection piece between the DTH hammer and the drill string, transmitting impact energy and rotation.
Thread Type
The specific thread standard used to connect DTH hammers and bits (e.g., API, BSPT, or other regional standards).
Casing
A protective steel tube inserted into the borehole to prevent collapse and maintain borehole integrity.
Flush System
The system of air or fluid circulation that removes cuttings from the drill hole and cools the bit.
Rock Hardness
The resistance of rock to drilling, typically classified by standard hardness scales or drilling performance.