Machining device for outer pipe surfaces

A machining device for machining of a lateral surface of an approximately cylindrical object in portions thereof, the device comprising:

• a chain for annularly surrounding the object to be machined, said chain comprising first and second hingedly connectable chain links and a tool feed adjuster,
• wherein said first chain link comprises a tool holder having at least one tool for machining the lateral surface and further comprises support rollers for rolling on the lateral surface, and
• wherein said second chain link is a chain connecting link,
• wherein said first and second chain links are connectable in such a way that they form a closed chain ring around the object to be machined, and
• wherein said tool feed adjuster is capable of reversibly adjusting an axial position of facing ends of first and second chain links relative to each other, parallel to the axis of the closed chain ring.