Turn-mill machining combines turning and milling operations in one machine. Fewer setups can improve accuracy, and in-process measurement can help monitor dimensions. A rigid integrated structure supports heavy cutting, while automatic feeding can provide continuous operation where fitted.
 

A combined machine can reduce floor-space requirements and the number of separate setups. Although its purchase price may be higher, a shorter process chain and reduced fixture, floor-space and maintenance requirements can lower overall equipment and operating costs.