Online Machining Resource: Greene Tool University

Online Machining Resource

Greene Tool Systems is proud to introduce Greene Tool University.  An online machining resource designed to teach, refresh and remind engineers and machinists on the basic fundamental of machining and drilling.  Tired of looking through countless web pages trying to find answers to your problem.  GTU will be a centralized resource for the fundamentals.  We continue to build our content each week, so we encourage you to check back.  Furthermore, if you have new employees or need educational resources for machine operators, we encourage you to use our website to help you.

At Greene Tool Systems, on of our goals is to establish ourselves as a thought leader in the drilling and machining industry.  Please share this resource with your operators, engineers, employees and friends.  Our goal is to make your production easier and pain free.

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Directions for Use

  1. Enter your data parameters into the fields on the left
  2. Click the green arrow in the center of the calculator
  3. Your answers will appear in the fields on the right
-- change calculator using buttons below -- Tap Drill MM Tap Drill RPM SFPM Helix Angle

Tap Drill Size

MM Tap Drill



Helix Angle