Spiral Drill Collars

Drill collars (AISI 4145H Alloy Steel or Non-magnetic material ) Standard: API Spec7 Specification: OD: 3-1/8"-11" Length: 10'-31'

Description

Drill collars (AISI 4145H Alloy Steel or Non-magnetic material ) Standard: API Spec7 Specification: OD: 3-1/8"-11" Length: 10'-31'