G84 X_ Y_ Z_ R_ P_ Q_ F_ K_ ;
X Y – Hole position.
Z – Z-depth (feed to Z-depth starting from R plane).
R – Position of the R plane.
P – Dwell time at the bottom of the hole and at point R when a return is made.
Q – Depth of cut for each cutting feed (Peck depth).
F – The cutting feedrate.
K – Number of repeats (if required).