Hejian Smart Petroleum Machinery Co., Ltd.
Main products:Tricone Bit,PDC Bit
Contact Us
  • Contact Person : Ms. Feng Emely
  • Company Name : Hejian Smart Petroleum Machinery Co., Ltd.
  • Tel : 86-317-3180823
  • Fax : 86-317-3180823
  • Address : Hebei,Hejian,Junziguan,Shijing town, Hejian
  • Country/Region : China
  • Zip : 062450

12 1/4'' PDC drilling bit

12 1/4'' PDC drilling bit
Product Detailed
Polly crystalline Diamond Compact 1. High wear resistance cutters. 2. Oppose-circumnutating design. PDC bit, diamond bit,

1.Five Blades and Capacious Flume

Symmetrical parabola crown profile, asymmetrical blades, the cutters are distributed as curve, more assistant cutters inserted and bit gauge is designed spiral. Flow room age is optimal designed so that mud and rock granule can be clear easily in drilling.

2.High wear resistance cutters. High performance PDC cutters optimal design highly decrease the cutting resistance, largely increase the life of bit.

3.Oppose-circumnutation design. The load on bit is balanced, and the journal libration is decreased as well as good performance in directional drilling.

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

Maximum Φ(inch)

8 1/2

Quantity of Blade


Quantity of Nozzle


Quantity of Cutters

37 pieces

Main Cutter Size


Gauge Length


Junk Slot Area


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





 Please specify the following on enquiry,DiameterBit bodyIADC codeNumber of blades

Main Cutter sizeThread ConnectionDrilling formation

12 1/4'' PDC drilling bit

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