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: ...

Criterion Machine Works (www.criterionmachineworks.com) has introduced a 0.125-in. diameter, solid carbide qualified length (QL) boring tool to its line of solid carbide boring tools. ... Criterion ...

Dialing in fine boring heads with just a Vernier dial screw can be tricky. When you’re trying to hold a bore to a few tenth’s, it can often take multiple test cuts before getting the ID tolerance just ...