Rotary Drilling Systems D 76.1 - D 114.3 with rotary head and DTH-hammer
These drilling systems are used for all types of rocks using basic drill rods and a DTH hammer.
The design oft he drill bits can vary. They are used to drill various kinds of hard and sometimes abrasive rock types.
Product information sheet:
Rotary Drilling Systems with rotary head and DTH-hammer (336KB)
more informationen in PDF
Examples of application:
