Menomonee Falls, Wis.-based Unisig manufactures deep-hole drilling systems and precision metal-cutting systems, for complex structures required in aerospace, automotive, energy, and medical part ...

Drilling holes in rotating shafts is customized via machine loading and unloading, with workpiece lengths and load-bearing capacity adjustable as required. Deep-hole drilling is an important ...

China begins drilling a six-mile-deep scientific well named Shendi Take 1 to explore the depths of the Earth and its secrets.

Aluminium needs a sharp bit because it's so soft, a blunt drill will make a messy hole with a lot of fash on the back side. Doesn't need to be anything better than standard HSS. <P>I'd work up from ...

Almost any general-purpose twist bit will do a decent job of drilling holes in metal. In fact, most drill bits labeled specifically for metal are manufactured to drill through various materials, ...