Drill Collar - Stainless Steel, 9144mm Or 9450mm Length | Non-magnetic Material, Precision Forged With Api Certification

We are instrumental in providing to our valuable customers excellent quality Drill Collar which is available with following specification:-
Place of Origin: Shandong, China (Mainland)
Brand Name: Nera
Model Number: WCZT105-WCZT203
Type: Drill Collar Machine
Type: Drilling Tool Certification: API
Processing Type: Forging Test: UT&MT
Use: Well Drilling Effective
Length (mm): 9144 or 9450
Connection Type: NC31-41, NC35-47, NC38-50, NC44-60, NC46-62, etc
Material: Stainless Steel, Non-magnetic material, P550
Manufacture Technique: Hot forged and heat treatment
Surface finishes: Black, Peeled, Turned & Polished

This product is made of first-class non-magnetic material to monitor whether the borehole goes following the designed path to insure of accurate measurement.
It's manufacture process is: Smelting, Electroslag remelting, Forging by precision forging machine, Solution strengthening, Ultrasonic testing, Mechanical processing, Magnetic permeability testing and Finished product testing.