| Customization: | Available |
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| Customized: | Customized |
| Standard: | DIN |
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System Principle | Drilling Method | Stationary Drill Head, Rotating Workpiece (Standard). Rotating Tool versions available. |
Coolant & Chip Flow | High-pressure coolant enters externally, chips evacuatedinsidethe drill tube. | |
Tool Types | Solid BTA Drill | For drilling solid material to full diameter. |
BTA Trepanning Head | For annular cutting (coring), leaving a usable center slug. Ideal for very large diameters. | |
Diameter Range | Standard Solid Drills | 18 mm to 180 mm (0.71" to 7.09") |
Trepanning Heads | 65 mm to 360 mm+ (2.56" to 14.17"+) | |
Depth Capability | Typical Max Depth | Up to 400 x Diameter (common), capable of exceeding 500x with special setups. |
Coolant System | Operating Pressure | 10 - 40 bar (145 - 580 psi) typical, depending on diameter and material. |
Flow Rate | High-volume flow critical for effective chip evacuation. System-specific. | |
Key Components | Essential Parts | Drill Head, Drill Tube, Pressure Head, Sealing Bushing, Coolant Adapter. |
Tolerances | Diameter Tolerance | Typically within IT9 – IT10 (e.g., ±0.04 to ±0.07 mm for 20mm dia.). |
Hole Straightness | Typically 0.1 mm per 1000 mm (0.001 in per ft) or better. | |
Surface Finish | Achievable Finish | 1.6 – 6.3 µm Ra (63 – 250 µin Ra) standard. Finer finishes possible with optimization. |
Workpiece Materials | Optimized For | Carbon & Alloy Steels, Stainless Steels, Cast Irons, Non-ferrous Alloys (Aluminum, Copper). |
Machine Requirement | Required Setup | Dedicated BTA Deep Hole Drilling Machine, or Lathe/Mill with BTA attachment & high-pressure coolant system. |





