The world's first in-situ diameter-adjustable tunnel boring machine is rolled out at an equipment company in Foshan, Guangdong province, on Tuesday. [Photo provided to chinadaily.com.cn] The world's ...

Kennametal’s asymmetric line-boring system increases machining robustness, process speeds, and bore quality, and reduces tool maintenance and handling. Precision is vital in manufacturing many ...

Boring, also called internal turning, is used to increase the inside diameter of a hole. The original hole is made with a drill, or it may be a cored hole in a casting. Boring achieves three things: ...