| RPM = ([SFM] x 3.82) / [D] |
D = Diameter of Tap in inches |
|
| SFM = (3.14 x [D] x [RPM]) / 12 |
D = Diameter of Tap in inches |
|
| Inch Taps Drill Size = [Major Diameter of Tap] - |
.01299 x [% of Full Thread]
[# Of Threads / inch]
|
|
| Inch Taps % of Full Thread = [Threads/in] x |
[Major Dia. of Tap] - [Drill Diameter]
.01299
|
|
| Metric Taps
Drill Size = [Major Diameter of Tap (mm)] - |
[% of Thread] x [Metric Pitch]
76.98
|
|
Metric Taps
% of Full Thread =
|
76.980
[Metric Pitch]
|
x ( [Basic Major Dia. (mm)] - [Drilled Hole (mm)]
)
|
|
| Form Tap Drill Size = [Basic Tap OD] - |
.0068 x [% of Threads]
[Threads / Inch]
|
|
| Inch Taps IPM (For Threads) = [RPM] / [TPI (Threads per Inch)] |
| Inch Taps IPR (For Threads) = 1 / [TPI] |
| Inch Taps IPM (Inches Per Minute) = [IPR] x [RPM] |
| Inch Taps IPR (Inches Per Rev.) = [IPM] / [RPM] |
| Metric Taps MM/Min = [RPM] x [Metric Pitch] |
| Inch Taps In/Min = [RPM] / [# of Threads per in.] |
| Distance = [Rate] x [Time] |
|
