measurements of good size, matching the corresponding joint.
well check each bit roller flexibility, loose or not, connection of drilling tools.
to the bottom, the rotating disk, to be smooth, then slowly down, all the sand flushing as well.
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PDC is made of diamond micro-powder and hard alloy substrate under high
temperature and high pressure. It possess of high wear resistance like
diamond, at the same time the impact resistance like hard alloy and that’s
made it the best material as a drill bit cutter. Reinforced PDC has higher
dense diamond powder, claw hard alloy substrate made the two layers solid
as whole one. So, the reinforced PDC of supper wear resistance, longer
service life and high efficiency.