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: ...

Boring is the method used to enlarge a hole that has already been cast or drilled via a single-point cutting tool or a boring head that contains multiple such tools. The hole created by a boring ...

MITSUI SEIKI USA’s newest machine series, the J12/J/16 jig borers, combine high capacity and high precision to meet the increasing need for accuracy in machining workpieces like molds and castings.