Fine Boring Cycle (G76) - Adtech ADTECH9 Series Programming Manual

Spindle stops; and if P is specified, it pauses at hole bottom (P) ms
The spindle rotates forward, and cut to the (R) point position with the set cutting federate and spindle speed.
Tapping finishes, and returns to initial point of tool under the G98 mode quickly, and returns to the (R)
position under G99 mode.
If K (K>1) is specified, repeat the above actions 2~7 until the specified number of drill holes repeats is
completed.
In the G94 (feed per minute) mode, the cutting feedrate is the spindle speed (S) * the pitch of the thread
(PITCH). And, in the G95 (feed per revolution) mode, the cutting speed feedrate F is thread pitch (PITCH).

Notice:
In G74 and G84 cycle, the feeding rate switch and feeding retaining switch are ignored, i.e. feeding rate is
retained at 100%, and can't be stopped before a fixed cycle completes; before cycle starts, the spindle should
be specified to rotate in taping direction.

2.4.3. Fine boring cycle (G76)

Fine boring, the precision hole by boring
Format:
Format: G76 X_ Y_ Z_ R_ Q_ F_
X_ Y_
Z_
R_
Q_
P_
F_
K_
Details:
ADTECH9 Series CNC Programming Manual
Hole position
Threaded hole bottom position
Point of borehole engaging/retracting
Offset of tool in X direction
Dwell time at the bottom of hole
Cutting feed rate
Repeat times (if necessary)