Speeds & Feeds

Finding the right combination of speeds and feeds is crucial for achieving longer tool life, faster machining speeds, and better surface finish. This handy table provides the information and formulas you need to calculate the best material cutting speeds and feed rates for milling, turning/boring, drilling, and reaming. Some practice is required to apply these formulas correctly. 

Some practice is required to apply these formulas correctly. The following sample problems are typical of those encountered in an automotive machine shop.

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