Place of Origin: Hebei, China (Mainland)         Brand Name: AYJ                           Model Number: IADC517/127

Type: Center Drill Bit                                                  Material: Cobalt Steel Alloys         Use: Well Drilling

Size: 12 1/4''                                                                  size range: 3''~36''                               Color: blue or as customers' requirement

seal type: rubber sealed bearing                          bearing type: sliding bearing         IADC CODE: 137

1) Condition: 100% new
2) Manufacturer brand name: AYJ

3) The bit size: 12 1/4''
4) IADC code: 137
5) Seal type: Rubber Sealed Bearing
6) Bearing type: sliding bearing

Above features are subject to changes and modifications according to customers' requirements.

Tricone Bit, Steel Tooth Bit, TCI Bit, Single Cone Bit,Tricone Rock Bits,Rotary Bits

Application Petroleum & Gas ,Water well ,Mining and Tectonic Industries ,Oil field, Construction, Geothermal, Directional Boring, and Underground Foundation work.