Halco Rock Tools, UK Manufacturer of DTH Hammers and Bits. Halco pioneered the development and distribution of DTH hammers in the 1950s.
In hard-rock formations, air drilling provides an ROP that is up to five times faster than drilling with conventional fluids.
 
 
Air drilling is an underbalanced drilling (UBD) technique in which gases, usually compressed air or nitrogen are used to cool the drill bit and lift the cuttings of a wellbore in place of conventionally used liquids.
  
Superior 600
Superior 650
Superior 850
Superior 800
Superior 1000
Superior 1200
Superior 1250
Size
Hammer Type
Part Number
Shank
SUPERIOR 600
SUPERIOR 650
SUPERIOR 800
SUPERIOR 850
SUPERIOR 1000
SUPERIOR 1200
SUPERIOR 1250
  
600431
600439
600432
600433
600434 / 600443
600435
600436
  
QL 60
QL60
DHD 380
QL 80
SD10 / TD90
DHD112
DHD112S
  
6"
 
8"
.
10"
12"
Size
Hammer Type
Drilling Diameters
Air Pressure
156mm – 241mm
158mm – 241mm
222mm – 270mm
200mm – 311mm
254mm – 381mm
381mm – 489mm
438mm – 660mm
100 – 435psi (7 – 30 bar)
100 – 435psi (7 – 30 bar)
100 – 435psi (7 – 30 bar)
100 – 435psi (7 – 30 bar)
100 – 435psi (7 – 30 bar)
100 – 435psi (7 – 30 bar)
100 – 350psi (7 – 24 bar)
SUPERIOR 600
SUPERIOR 650
SUPERIOR 800
SUPERIOR 850
SUPERIOR 1000
SUPERIOR 1200
SUPERIOR 1250
6"
 
8"
.
10"
12"