LOS ANGELES (CBSLA) — Two tunnel-digging machines that will bore through the ground to create a path for the Metro Purple Line subway under Wilshire Boulevard were unveiled today. The tunnel-boring ...
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Building and testing heavy-duty line boring stands

We assemble and test heavy-duty stands designed for a Sir Meccanica portable line boring and bore welding machine, focusing ...
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 ...
A 950-ton steel tunnel-boring machine named Harriet that carved out 2 miles of earth for a light rail line headed to Los Angeles International Airport will be dismantled underneath South Los Angeles ...
ALLIED MACHINE AND ENGINEERING reported the expansion of its Wohlhaupter boring tools offering with the launch of the 465 (464) series of fine boring heads. These internally balanced fine boring heads ...