Handheld Pneumatic Rock Drills
Air-driven sinker drills for downward and horizontal holes in rock and concrete. Simple, repairable and dependent entirely on the air supply reaching the tool.
Features
- Simple valve-and-piston construction means field repair with a basic kit and no electronics.
- Pressure and flow measured at the tool decide performance; hose diameter and length are part of the specification.
- Water flushing through the steel suppresses dust at the hole and clears cuttings.
- Vibration-damped handles extend permitted daily use, which is often the binding constraint rather than output.
- Lubricators in the airline are not optional; an unlubricated drill wears out in days.
Specifications
| Figure | Typical range | Unit | Why it matters |
|---|---|---|---|
| Tool weight | 18 - 32 | kg | Governs usable shift length for the operator. |
| Air pressure at the tool | 5 - 7 | bar | Has to be measured at the tool inlet. |
| Shank size | 22 x 108 hex | mm | Determines which steels fit. |