Tungsten Carbide TCI 12 1/4" Tricone Drill Bit IADC747 for Hard Formation/Oil Well Drilling
Basic Info.
Model NO.
YHA 12 1/4-747G
Bearing Type
Rubber Sealed Journal Bearing
IADC Code
7-4-7
Tooth Type
Spherical Inserts Teeth
Trademark
YINHAI
Specification
98kg
Origin
Cangzhou City, Hebei Province, China
HS Code
8207199000
TECH DATA OF YINHAI 12 1/4" BIT
| 417,437,447 | 0.35~0.9 | 150~70 | Extremely soft formation with low compressive strength and high drillability,such as clay,mudstone,cretaceous,gypsum,salinastone,soft shale and soft limestone |
| 517,527 | 0.35~1.0 | 140~60 | soft formation with low compressive strength ,such as mudstone,gypsum,salinastone,soft shale and soft limestone |
| 537,547 | 0.45~1.0 | 120~50 | ,,, Soft to medium formation with low compressive strength,such as mid-soft shale,mid -soft limestone,mid-soft sandstone and medium formation with harder abrasiveness interbeds |
| 617,627 | 0.45~1.1 | 90~50 | Mid-hard formation with high compressive strength,such as hard shale,limestone,sandstone,and dolomite |
| 637 | 0.5~1.2 | 80~40 | Hard formation with high compressive strength,such as sandstone,limestone,dolomite and anhydrite,marble |
REAL SHOT 12 1/4" BITS 
EXHIBITION SHOW 
FAQ:
1.Q:What kind of packing do you have?
A: Plywood case free of fumigation; Cartons; Packing can be customized.
2.Q:What is your price advantage?
A:We are 100% factory directly sales,API production process guarantee,Provide customized services for brand processing.
Reduce the cost of drilling for you, Don’t worry about after-sales service.
Welcome to book a video-call to inspect factory.
Write your message here and send it to us
