Home / Products / DTH tools
DTH DRILL TOOL
Hammers and bits matched as a set | five series: DHD / QL / Mission / NUMA / SD
What the tool string consists of
The hammer delivers impact energy, the bit breaks the rock — both are selected together by hole size and air pressure
Hammers DTH HAMMER
DTH hammers driven by compressed air. Five series cover Φ82–Φ305 mm outer diameter, with or without foot valve; each model has a cutaway drawing, parts list and full specifications.
- 35 models
- DHD / QL / Mission / NUMA / SD
- Φ90–400 mm hole range
Drill Bit DTH BIT
DTH bits matched to the hammers: flat, convex and concave faces, with gauge and front buttons configured by rock abrasiveness. Five series, 186 sizes, searchable by head diameter.
- 5 series
- 186 sizes
- Flat / convex / concave
DTH Drill Pipe DRILL PIPE
Connects hammer and bit, transmitting rotary torque and feed force. Two types — standard pipe and starter pipe — covering 2 3/8″ to 5 1/4″ threads.
- 71 sizes
- API REG / IF / BECO
- Φ89–194 mm
Adapter (Sub) ADAPTER
A short sub with different threads at each end, used to change diameter or thread standard so that tools of different specs can be joined into one string.
- 75 sizes
- Box to Pin (female to male)
- Φ76–273 mm
Selecting a matching set
Hammer and bit are matched within the same hole range: choose the hammer by rig air volume and hole depth, then the bit face and button type by rock hardness and abrasiveness. Threads must agree (e.g. API2 3/8″REG with the 3.5–4 inch series).
We can propose a complete set for your rig and conditions, or supply hammers and bits separately.
Didn't find the model you need?
Send us hole size, rock type and rig model — we reply with a matching proposal and quote within 24 hours.