Drill pipe 6-5/8”, 27.70 lb./ft Grade S-135, pipe body wall 0.362”, Connection 6-5/8” FH, Connection OD 8- 1/2”, Connection Pin ID 4-1/4”, as per API – 5DP Latest edition for Drill Pipe. Tool Joints will be phosphated & will be 2 inch longer than standard (Standard Pin tong space 8” & Box Tong space 11”). Show More