Internal tool for accommodating pipe, has connection pin connected with mandrel bar end which is designed as sleeve section that exhibits conically tapered thread free section, where connection is carried out by screw connection

摘要

The tool has a cylindrical mandrel bar (1) and a connection pin (6) that is connected with a mandrel bar end, where the connection is carried out by screw connection. The mandrel bar end is designed as a sleeve section (2) which exhibits a conically tapered thread free section (3). The free section is connected with a complementary thread free section (8) of the connection pin using a deadlock.