Today’s General Purpose end mills were originally considered the ‘industry standard’ prior to high performance end mills. They are typically manufactured to NAS986 standards and include a 30° helix. Their affordability and versatility remains popular today.
Available with or without tool coatings, in multiple flutes and in a wide range of diameters and lengths, Dura-Mill offers a wide selection of end mills with tool geometry that will machine a broad range of steels & non-ferrous materials.
(These are typically not application or material specific.)
For higher productivity or increased tool life consider using high performance or maximum performance end mills, or speak to a Customer Service Representative for the best tools for your specific applications.