{"L1_core": {"domain": "manufacturing", "category": "process", "identifier": "drl_taladrado", "subcategory": "machining"}, "L2_process": {"type": "hole_making", "method": "drilling", "temperature": "cold_with_coolant", "tool_rotation": true, "material_removal": "chip_forming"}, "L4_quality": {"controls": ["diameter_go_nogo", "depth_verification", "perpendicularity", "surface_finish", "positional_tolerance"], "tolerances": "IT9-IT11_standard", "instruments": ["bore_gauge", "depth_gauge", "cmm"]}, "L5_metadata": {"source": "technical_standards", "confidence": 0.95, "last_updated": "2026-01-04", "industry_codes": ["general_machining", "automotive", "aerospace", "tooling"]}, "L3_technical": {"equipment": ["drill_press", "radial_drill", "cnc_machining_center", "portable_drill", "multi_spindle_unit"], "parameters": {"feed_mm_rev": "0.05-0.5", "point_angle_deg": "118-135", "cutting_speed_m_min": "15-200"}, "tool_types": ["twist_drill", "carbide_drill", "pilot_point", "step_drill", "gun_drill"]}}