Drill Collars

We supply drill collars made of AISI 4145H or 4145H Modified Alloy Steel in accordance with API 7-1. We also supply drill collars with slip and elevator recess as per API. Drill collars supplied by us are slick and spiral. Our drill collars are available in lengths ranging from 10’ to 31’ and outer diameter ranging from 3 1/8" to 10".

Standard: API 7-1
Material: AISI 4145H and 4145H MODIFIED ALLOY STEEL
OD Size Range: 3 1/8" to 10"
Length: 10’ to 31’