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Dimensione pre-foro di maschiatura

Calcolare la dimensione del pre-foro di maschiatura.

 

Cutting Tap Parameters

in mm
%    
Enter desired % or leave blank if you do not know. Cutting Taps 68% to 70% recommended
Calcola
 

Resulting Hole Size

in.
 

Forming Tap Parameters

in mm
%    
Enter desired % or leave blank if you do not know. Cutting Taps 68% to 70% recommended
Calcola
 

Resulting Hole Size

in.
 

Calculate Major Diameter For Tap Drill Size

in mm
Calcola
 

Results

in
 

Suggested Percentages of Full Thread in Tapped Holes

A common internal thread&#44 drilled so that it results in 50% of full thread will break the external thread&#44 before the internal thread will strip. A common internal thread drilled out so that it contains 100% of full thread is only 5% stronger than a 75% height of thread&#44 yet it requires 3 times the power to tap.

These calculations are based upon theoretical values and are only intended for planning purposes. Actual results will vary. No responsibility from Kennametal is assumed.

 
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