Product features: It is used in drill string which are one of the most important component to provide drilling bit of pressure and the drill string rigid role. All connections are phosphate-coated or copper plating to improve resistance to galling. Our company offers steel and cast steel and plastic steel thread protectors for its drill stem products.
Material: Drill collars are made from AISI 4145H, 4145H Mod.and Non-mad material.
Standard: API Spec7, API Spec7-1 and SY/T Standard.
Type: Slick drill collar
Spiral drill collar
Hard band: We can supply three type of hard banding, Arnco 100, Arnco 200 and Arnco 300. Also can made according to customers＊ requirments.
Output: 600pcs per month.
Size: OD: 3 1/8§~~11§; ID: 1 1/2§Min. Length:10＊~~31＊
Features:
- . AISI 4145H, 4145H Mod
Ordering information:
- Minimum Order: 1
- FOB: Tianjin