Wear bushing is usually used to prevent casing head shoulder or tubing head shoulder from the damage during drilling operations Running tool for wear bushing is used to send or retrieve wear bushing, with excellent reliability and safety.

Test plug is also installed on the shoulder of casing head or casing spool in order to test the seal performance of casing head, casing spool and BOP.

All wear bushings, running, retrieving and testing tools are designed, fabricated and inspected in accordance with API Spec. 6A and API Spec. 7.