February 2009 – Threaded Holes Overview

Last month’s newsletter discussed some of the factors related to tolerances that drive machined part cost. This month we are going to talk about threaded holes and threaded inserts. We will go into greater depth in future newsletters about other types of holes and threads. Threaded holes can vary widely in cost. One thing to…

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January 2009 – Tolerances

Last month’s newsletter discussed some of the issues with specifying material sizes and specs. This month we are going to discuss the topic of geometric tolerances and how they drive cost. Nothing can drive up costs on a part more quickly than tight tolerances that are difficult to machine or measure. Some tight tolerances are…

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