The heavy weight drill pipe offered by TSC also made from AISI 4145 alloy steel. All properties are in compliance to API 7.  Sizes offered are from 3-1/2” to 6-5/8” with NC38, NC46, NC 50, 5-1/2 FH and 6-5/8 FH thread.

Contact us for details on your drill collar and heavy weight drill pipe offering.