G&M Code Reference
Control-specific reference. Machine-builder M-codes and optional functions may differ.
CNC Reference
Codes
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Expanded reference
Machine-Specific Caution
Use this as a fast reference, not as a substitute for the exact machine/operator manual. M-codes, optional functions, macros, parameters, canned-cycle details, and even some G-code behavior can vary by machine builder, control option, software version, and installed hardware. Verify unfamiliar commands before running them.