Almost any general-purpose twist bit will do a decent job of drilling holes in metal. In fact, most drill bits labeled ...

Drilling holes can be quite time consuming work, particularly if you have to drill a lot of them. Think about all the hassle of grabbing a part, fixturing it in the drill press, lining it up, double ...

There are three tool options to consider when drilling large-diameter holes in thick steel: twist drill bits, hole saws and annular cutters. 1. Twist drill bits. Especially in steel thicker than ¼", ...

Following repeated failure of bicenter drillbits to meet demanding requirements in a number of offshore East Malaysia wells, Royal Dutch/Shell Group's Shell Malaysia Ltd. drilled six wells with an ...