We offer a range of tungsten carbide tipped core bits to suit most types of core barrel. We use highest quality tungsten carbide grades, tried and tested over many years to give optimum performance in drilling applications. The different designs are illustrated here. For the full range of sizes and designs available please refer to Core Bit Data Tables.
Rectangular T.C. Type
The most common design of core bits incorporating T.C. plates. The bit face has a sawtooth profile and flushing ports may be face discharge or internal discharge depending on the application.
Taper T.C. Type
The tapered profile of the crown provides more efficient clearance of cuttings and the larger cutting surface area of T.C. blades gives faster penetration. A very aggressive bit design used in soft formations with face discharge flushing ports.
Octagonal T.C. Type
Usually supplied on core bits with a narrow crown or when drilling somewhat harder formations. The larger number of cutting surfaces provides optimum penetration in thin-kerf designs.
Fragmental T.C. Type
Recommended in formations that are highly fractured or contain loose pebbles and where T.C. inserts would be susceptible to chipping or impact damage. Provides more even wear over the entire cutting surface and longer cutting life as new T.c. points are exposed during drilling.
See also:
Geotechnical & PDC Diamond Core Bits
Surface Set Diamond Core Bits
Impregnated Diamond Core Bits
