BQ Drill Bit

The wireline coring bit shall be selected according to the drillability of different rocks and the abrasiveness and integrity of rocks, and shall be repaired and replaced in time according to the wear of the bit.

When replacing a new drill bit each time, measure the outer diameter of the reamer used last time, which must be slightly larger than the outer diameter of the new drill bit.Each time a new drill bit is replaced, the vernier caliper shall be used on site to accurately measure the inner diameter, outer diameter and height.