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Haas Lathe · G-code

G75 OD/ID Grooving Cycle

Pecks along X to cut grooves on the OD or ID, stepping along Z for wide grooves.

Updated · by Ethan Reynolds

What G75 does on a Haas lathe

G75 plunges in X by I, retracts to break the chip, and continues to the X depth. With a Z end point and K step it cuts multiple plunges side by side to make a wide groove.

It is the standard way to rough grooves and part-off with chip control.

G75 format

AddressMeaning
XGroove bottom diameter
ZFinal Z (for wide grooves)
IX peck amount
KZ step between plunges
FFeed

G75 example program

G00 X1.6 Z-0.5
G75 X1.25 I0.05 F0.003

⚠ Watch out

K must be smaller than the insert width, or ridges will be left between plunges.

Related codes

G75 questions

How do I cut a wide groove with G75?

Give a Z end point and a K step smaller than the insert width. The cycle plunges repeatedly across the groove.

Independent reference. Not affiliated with, sponsored by or endorsed by Haas Automation, Inc. Haas is a trademark of its respective owner. Always confirm codes against your machine's operator manual — options and settings vary by model and software version.