8 1/2" M1956C PDC Bit

Detailed Product Description

1. Five Blades and Capacious Flume
   Symmetrical parabola crown profile,asymmetrical bit blades ,the cutters are distributed

   as the curve and the gauge is designed spiral so that  the stability of the bit is

   encouraged.Besides that the edge of gauge is enhanced by extra cutters. The flow roomage is optimal designed so that the mud and rock granule can be clear easily in drilling.

2. High wear resistance cutters.High performance PDC cutters optimal designed highly

   increased the efficiency of drilling.

3. Oppose-circumnutation designed.The load on bit is balanced,and the journal libration is

   decreased as well as the stabilization of directional drilling is enhanced.

4. This type of bits are suitable for soft to medium-hard formation.

Maximum Φ(inch)	8 1/2
Quantity of Blade	5
Quantity of Nozzle	5
Quantity of Cutters	37 pieces
Main Cutter Size	19.05mm
Gauge Length	38mm
Junk Slot Area	572mm2
API Connection(inch)	4 1/2
Recommended Operation Parameters
Rotary Speed(RPM)	60-320 r/min
Flow Rate(L/S)	25-40  L/s
Weight on bit	10-120 KN