FACE DRILLING
1. 1940s
Swedish Method
Pusher leg drilling
Approx. capacity 10 m/hr
2. 1973
Hydraulic rock drilling
First generation
2 boom rig, COP 1038
Hole diameter 51 mm
Approx. capacity 125 m/hr
3. 2000
Rocket Boomer L3 C, ABC Total
3 boom rig, COP 1838 HF
Hole diameter 51 mm
Approx. capacity 275 m/hr

SURFACE BENCH DRILLING
1. 1940s
Handheld drilling
Approx. capacity 5 m/hr
2. 1974
Hydraulic crawler rig
First generation
1 boom, COP 1038 HB
Hole diameter 76 mm
Approx. capacity 30 m/hr
3. 2002
Computerized ROC D7 C
1 boom, COP 1838 ME/HE
Hole diameter 76 mm
Approx. capacity 60 m/hr