SysBohr - Model Duplex D 88.9 – 219.1 - Overburden Drilling System - Brochure

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.