| Deep-hole gun drilling | CNC machines for producing long, relatively small-diameter holes with gun drills and high-pressure coolant. | Single- or multi-spindle layouts; horizontal or vertical designs; workpiece travel and drilling depth depend on the model. | Moulds, dies, hydraulic components, shafts, and precision mechanical parts. | Supported hole-diameter and depth ranges, straightness and surface-finish specifications, coolant pressure, and workpiece envelope. |
| Small-diameter precision drilling | Machines designed for precision deep holes where tool size, runout control, and stable coolant delivery are important. | Fine-feed systems, precision spindles, and dedicated tool-guiding arrangements; exact supported diameters are model-specific. | Precision instrument parts, mould components, and small mechanical components. | Minimum drill diameter, spindle runout, repeatability, achievable hole depth, and suitable tool specifications. |
| Large-workpiece and long-bed drilling | Heavy-duty equipment intended for long or large workpieces and extended drilling travel. | Long-bed frames, substantial workpiece support, and configurable travel; bed length and load capacity differ by model. | Long shafts, large moulds, hydraulic cylinders, and other long components requiring deep holes. | Maximum workpiece length and weight, usable travel, support method, machine footprint, and loading requirements. |
| BTA and deep-hole drilling systems | Deep-hole equipment using BTA (single-tube) drilling, a process commonly used for larger hole diameters than gun drilling. | Specialized tooling, high-volume coolant supply, and chip evacuation through the drill tube; the usable diameter range is machine- and process-dependent. | Large hydraulic parts, rollers, cylinders, and industrial components with deeper, larger-diameter holes. | Compatible drilling process, minimum and maximum hole diameters, coolant and filtration needs, and chip-handling provisions. |
| Multi-spindle and production drilling | Machines configured to drill multiple holes or parts in a cycle to support repeat production. | Multiple drilling heads or spindles, dedicated fixtures, and CNC-controlled cycles; spindle count and layout are configuration-specific. | Batch production of components with recurring deep-hole patterns. | Required hole pattern, fixture design, simultaneous spindle capacity, changeover time, and production-cycle expectations. |
| Customized deep-hole machining cells | Purpose-built systems combining deep-hole drilling with workholding, loading, or additional machining operations. | Application-specific CNC layouts, fixtures, coolant systems, and optional automation designed around the part and process. | Components with specialized geometry, repeatable production requirements, or integrated process needs. | Part drawings, material, hole requirements, automation scope, acceptance criteria, and after-sales service arrangements. |