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Recent Blog Posts
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Selecting the proper cutting tool holder
12/04/2020
Happy Thanksgiving from Greene Tool Systems
11/25/2020
Drilling Crossholes: Should you drill from the top or bottom of a shaft?
11/20/2020
The Art of Drilling into Round Surfaces
11/06/2020
Meanwhile in New Hampshire…
10/30/2020
The Advantages of Using Multitasking Lathes
10/22/2020
Reaming Concentricity in Multiple Diameter Parts
10/15/2020
Tapping versus Thread Milling
10/02/2020
Our First Viral Video “Some machining pranks never get old”
09/25/2020
Controlling Chip Size When Milling
09/17/2020
Roller Burnishing versus Ballizing
09/10/2020
Keys to Drilling Titanium 2x Quicker and Efficiently
09/04/2020
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Directions for Use
Enter your data parameters into the fields on the left
Click the green arrow in the center of the calculator
Your answers will appear in the fields on the right
-- change calculator using buttons below --
Tap Drill
MM Tap Drill
RPM
SFPM
Helix Angle
- Select a Calculator -
Tap Drill Size
MM Tap Drill
RPM
SFPM
Helix Angle
Tap Drill Size
TAP DIA (0.000)
THREADS PER INCH
% OF THREAD
(65%, 70% OR 75%)
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Cut Tap Drill Size Inch
Cut Tap Drill Size MM
Roll Form Tap Size Inch
Roll Tap Size MM
MM Tap Drill
TAP DIA. MM
THREADS PER MM
% OF THREAD
(65%, 70% OR 75%)
Clear All
Inch Cut Tap
MM Cut Tap
Inch Roll Tap
MM Roll Tap
RPM
S.F.P.M.
TOOL OR PART DIAMETER (in)
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RPM
SFPM
RPM
TOOL OR PART DIAMETER (in)
Clear All
SFPM
Helix Angle
PITCH IN THREADS PER INCH
THREAD DIAMETER
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HELIX ANGLE
