Making sure your machine HAS rigid tapping first...This is Format 1, a 2-56 tap in S.S.
M6 T6 (2-56 TAP............
G0 G90 X.65 Y0 E4 S600 M5 M90 G80 G8 (sets rpm without turning on spindle
G84.2 (RIGID tapping initialization
G0 H6 D6 Z.325 M8
G84.1 G98 X.65 Y0 Z-.5 R+.5 F600. Q.01786 E4 (F600. is the rpm, matches the spindle setting above
X-.65 Y0
X.65 Y0 E3 (using E1, E2, E3, E4 taps 2 holes in each part in 4 different fixture locations
X-.65 Y0
X.65 Y0 E2
X-.65 Y0
X.65 Y0 E1
X-.65 Y0
G80
G0 Z2. M9
G0 H0 Z0 M5