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...medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control. 2. Concave Face The all-around application bit face specifically for medium hard and homogeneous rock fo...
...medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control. 2. Concave Face The all-around application bit face specifically for medium hard and homogeneous rock fo...
... rock formations. Low to medium air pressures. Maximum hole deviation control. 2. Concave Face The all-around application bit face specifically for medium hard and homogeneous rock formations. Good hole devi...
... rock formations. Low to medium air pressures. Maximum hole deviation control. 2. Concave Face The all-around application bit face specifically for medium hard and homogeneous rock formations. Good hole devi...