overburden bit


Specification
Model Casing Tube Reamer Pilot Bit Size Casing Shoe DTH Hammer
Max. O.D. m/m Min. O.D. m/m Dia m/m
Overburden Bit 90 115 102 123 90 101.7 CS 30 Hammer (A2315/SD3/DHD3.5)
Overburden Bit 115 142 128 152 114 127 CS 40 Hammer (A3415/SD4/DHD340A)
Overburden Bit 140 171 155.6 185 138 155.3 CS 50 Hammer (A4315/SD5/DHD350R)
Overburden Bit 165 195 182.6 211 165 180 CS 60 Hammer (A5315/SD6/DHD360)
Overburden Bit 190 222 205 237 190 204.7 CS 80 Hammer (A6315/SD8/DHD380)
Overburden Bit 240 273 206.4 308 240 208.3 CS 80 Hammer (A6315/SD8/DHD380)
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in this website are subject to change without notice.