Peter Zelinski Editorial Director

Peter Zelinski has been a writer and editor for Modern Machine Shop since 1997. His column, “The Z Axis,” appeared monthly in the magazine for 24 years and he is a co-host of MMS’s Made in the USA podcast. Pete is also an authority on the advance of 3D printing into industrial production. In 2012 he helped to launch Additive Manufacturing Media, and the much of his attention today is devoted to serving as editor-in-chief of this group. He is the co-host of an award-winning video series on additive manufacturing, The Cool Parts Show, and he has been a regular speaker at the Additive Manufacturing Conference, which is now the Formnext Forum. Pete earned his degree in mechanical engineering from the University of Cincinnati, and he first learned about machining by running and programming machine tools in a metalworking laboratory within what is now GE Aerospace.

Tooling

Faster Centerline Drilling with Continuous Pecks

By: Peter Zelinski

One of the most difficult small-part turning operations does not involve a turning tool at all, but instead involves a drill.