Regrinding large drills: Matching Drill Diameters on Long Holes

This week Tom Greene of Greene Tool Systems walks us through an issue that he recently had with a client.  In applications where you might be drilling at multiple depths there is a good chance that you could get catastrophic wear on your drills.  After consultation, together (customer and GTS) were able to find a solution.  In this video we share this solution in order to help you avoid the same issue in your manufacturing application.

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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

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RPM



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Helix Angle