hollow drill bit 1.diamond drill bit 2.PDC cutters for high speed drilling. 3.Advanced geometric design 4.Long-term su

Special Superhard diamond drill bits

Products Features:

1.We bought our own land and built our own factory.

2.Advanced geometric design for faster penetration.

3.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.

Detailed Parameter

	Φ28	Φ30	Φ32	Φ48	Φ56	Φ75	Φ94	Φ110	Φ152	Φ190	Φ230	Φ270
WOB(Kg)	300-700	300-700	300-700	300-700	320-800	48-1200	640-1600	880-2200	1500-3000	1800-4000	2200-4500	2400-5000
Speed(rpm)	300-350	300-350	300-350	300-350	250-350	200-300	150-250	120-200	100-200	100-200	100-200	100-200
WOB(1/min)	150-200	150-200	150-200	120-160	130-180	150-200	200-250	200-300	500-850	600-1200	750-1400	1000-1500

Best fit rock

Type	Fit rock
General PDC drill bits	F‹10Soft or middle hard rock
Strengthen the PDC bit	F=10-12 middle hard rock
PDC bit Big strength	F‹18 hard rock

Special Superhard hollow drill bit