CNC Deep Hole Drilling

CNC deep hole drilling brings together machine programming, tooling selection, and process optimization. Standard CNC machines — lathes, machining centers, and multi-axis platforms — can perform deep hole drilling using peck cycles (G73, G83), custom parametric macros, and CAM-generated toolpaths. Understanding control system variations (Fanuc, Siemens, Haas, Mazak, Okuma) is essential for writing portable, reliable programs. This guide covers G-code cycle programming with peck depth and retract selection, macro programming for custom deep hole cycles, and CAM strategies for multi-axis deep hole drilling.