DRILLSTAR CARBIDE TOOLS ARE WORKING IN MANY PLACES AROUND THE WORLD
The BTA Drill Head and BTA Gun Drill are advanced deep hole machining tools engineered to meet the rigorous demands of industrial drilling applications where precision, depth, and material toughness are critical. As core components of the BTA (Boring and Trepanning Association) system, these tools excel in creating cylindrical bores with exceptional straightness, surface finish, and dimensional accuracy. The BTA Drill Head is optimized for medium-to-large diameter holes (12mm–300mm) with depths up to 30 meters, while the BTA Gun Drill specializes in smaller diameters (3mm–50mm) and extreme depth-to-diameter ratios (up to 300:1), derived from its origins in firearm barrel manufacturing. Both tools integrate high-pressure coolant systems and innovative chip evacuation designs, making them indispensable for machining tough materials like steel, titanium, Inconel, and aluminum alloys across aerospace, automotive, energy, and medical industries.
Robust Deep Hole Capability
Processes holes with diameters from 12mm to 300mm and depths up to 30m, maintaining dimensional tolerances of IT6–IT8 and surface finishes of Ra 0.8–3.2μm.
Tri-lobe or multi-edge cutting inserts (carbide/HSS) generate small, manageable chips, evacuated via a central high-pressure coolant channel (3–8 MPa) to prevent jamming and extend tool life by 20%.
Precision Guidance & Stability
Integral tungsten carbide/polycrystalline diamond guide pads ensure concentricity within 0.05mm/m of depth, minimizing hole deviation even in high aspect ratio drilling (depth:diameter >100:1).
Hydrodynamic lubrication between guide pads and bore walls reduces friction, eliminating post-machining operations for most applications.
Modular Design for Flexibility
Quick-release tool holders (BT, HSK, VDI) enable rapid drill head replacement, reducing setup time by 30% compared to conventional tools.
Interchangeable nozzle assemblies adjust coolant flow (50–500 L/min) and pressure, optimizing performance for varying material hardness and hole specifications.
Material Compatibility
Hardened tool body (HRC 58–62) withstands high-strength materials (up to 1,500 MPa tensile strength), with optional TiN/TiAlN coatings for enhanced corrosion resistance in wet environments.
Customizable cutting edge profiles (flat, convex, concave) adapt to ductile (aluminum) and brittle (cast iron) workpieces, improving chip formation and surface quality.
Extreme Depth Precision
Specialized for diameters 3mm–50mm and depths up to 15m, achieving depth-to-diameter ratios of 100:1 (standard) and 300:1 (custom), with dimensional accuracy of ±0.02mm and surface finish Ra 0.4–1.6μm.
Single-cutter design with 120° point angle and asymmetrical flute directs chips through a V-shaped coolant slot, enabling efficient evacuation in long-depth drilling.
High-Pressure Cooling System
Internal coolant channel (2–10mm diameter) delivers fluid at up to 10 MPa, cooling the cutting edge and flushing chips to maintain consistent performance in high-temperature machining of nickel-based alloys.
Adjustable nozzle tips control coolant velocity (15–30 m/s), optimizing heat dissipation and lubrication for materials like titanium and hardened steel.
Rigid Construction & Alignment
Solid carbide shank (for <12mm diameters) or brazed carbide tip on steel shank provides high torsional stiffness, minimizing deflection to <0.1mm/m of depth.
Pilot diameter (ground to IT5 tolerance) ensures precise initial penetration, supported by optional laser alignment tools for axis positioning within 0.03mm of target.
Customization for Specialized Needs
DLC/CrN coatings on cutting edges enhance wear resistance in abrasive materials, extending tool life by 30% in cast iron machining.
Tailored geometries for through-holes, blind holes, or stepped bores, with adjustable relief angles to optimize chip evacuation in interrupted cutting conditions.
BTA Drill Head: Machines deep holes in titanium alloy landing gear and aluminum wing spars for hydraulic systems, ensuring tight tolerances for fluid control and structural integrity.
BTA Gun Drill: Produces precision bores in aerospace connectors and sensor housings, critical for avionics and fuel systems where dimensional consistency and surface finish (Ra ≤0.4μm) are paramount.
Processes high-pressure pump shafts and heat exchanger tubes made of duplex stainless steel/Inconel, enabling reliable performance in offshore drilling equipment under extreme pressure.
BTA Drill Head: Creates engine cylinder bores and transmission shafts in cast iron/aluminum with Ra <1.6μm for efficient mass production.
BTA Gun Drill: Drills deep holes in orthopedic implants (stainless steel/titanium) and firearm barrels, meeting ISO 13485 and ballistic accuracy requirements.
Machines deep holes in wind turbine hubs, nuclear reactor components, and hydraulic valves, ensuring structural stability and leak-free performance under heavy loads.
Q: What is the key difference between BTA Drill Head and BTA Gun Drill?
A: The BTA Drill Head handles larger diameters (12mm–300mm) for medium-depth holes (up to 30m), while the BTA Gun Drill specializes in smaller diameters (3mm–50mm) with extreme depth-to-diameter ratios (up to 300:1), ideal for precision bores in firearm barrels and medical implants.
Q: Can these tools machine non-ferrous materials like aluminum?
A: Yes. Both tools are optimized for non-ferrous (aluminum, copper) and ferrous (steel, Inconel) materials. The BTA Gun Drill’s single-cutter design and high-pressure coolant system excel in aluminum’s ductile nature, preventing chip welding and surface defects.
Q: What coolant type is recommended for high-temperature applications?
A: Synthetic coolants or high-viscosity oils are ideal for nickel-based alloys (Inconel) to reduce tool wear, while water-based emulsions (5–10% concentration) suffice for general steel machining. Coolant filtration to 5μm is mandatory to protect internal channels.
Q: How to maintain guide pads on the BTA Drill Head?
A: Inspect pad wear every 50 hours; replace when surface roughness exceeds Ra 3.2μm. Regularly clean coolant lines to prevent abrasive particles from damaging pad surfaces, ensuring consistent hole straightness.
Q: Are these tools compatible with CNC machine tool changers?
A: Yes. Both feature standardized interfaces (VDI, Capto, HSK) for seamless integration with automated tool changers, supporting lights-out manufacturing and high-volume production workflows.
| Product Specification | |
Material | Tungsten Carbide |
Type | BTA Bit |
Model Number | AG Carbide |
Brand Name | DR |
Place of Origin | Shandong, China (Mainland) |
Carbide | ISCAR or Country field |
Certification | CE,ISO |
Use | Metal Drilling |
OEM | Can be OEM |
The BTA Drill Head and BTA Gun Drill are advanced deep hole machining tools engineered to meet the rigorous demands of industrial drilling applications where precision, depth, and material toughness are critical. As core components of the BTA (Boring and Trepanning Association) system, these tools excel in creating cylindrical bores with exceptional straightness, surface finish, and dimensional accuracy. The BTA Drill Head is optimized for medium-to-large diameter holes (12mm–300mm) with depths up to 30 meters, while the BTA Gun Drill specializes in smaller diameters (3mm–50mm) and extreme depth-to-diameter ratios (up to 300:1), derived from its origins in firearm barrel manufacturing. Both tools integrate high-pressure coolant systems and innovative chip evacuation designs, making them indispensable for machining tough materials like steel, titanium, Inconel, and aluminum alloys across aerospace, automotive, energy, and medical industries.
Robust Deep Hole Capability
Processes holes with diameters from 12mm to 300mm and depths up to 30m, maintaining dimensional tolerances of IT6–IT8 and surface finishes of Ra 0.8–3.2μm.
Tri-lobe or multi-edge cutting inserts (carbide/HSS) generate small, manageable chips, evacuated via a central high-pressure coolant channel (3–8 MPa) to prevent jamming and extend tool life by 20%.
Precision Guidance & Stability
Integral tungsten carbide/polycrystalline diamond guide pads ensure concentricity within 0.05mm/m of depth, minimizing hole deviation even in high aspect ratio drilling (depth:diameter >100:1).
Hydrodynamic lubrication between guide pads and bore walls reduces friction, eliminating post-machining operations for most applications.
Modular Design for Flexibility
Quick-release tool holders (BT, HSK, VDI) enable rapid drill head replacement, reducing setup time by 30% compared to conventional tools.
Interchangeable nozzle assemblies adjust coolant flow (50–500 L/min) and pressure, optimizing performance for varying material hardness and hole specifications.
Material Compatibility
Hardened tool body (HRC 58–62) withstands high-strength materials (up to 1,500 MPa tensile strength), with optional TiN/TiAlN coatings for enhanced corrosion resistance in wet environments.
Customizable cutting edge profiles (flat, convex, concave) adapt to ductile (aluminum) and brittle (cast iron) workpieces, improving chip formation and surface quality.
Extreme Depth Precision
Specialized for diameters 3mm–50mm and depths up to 15m, achieving depth-to-diameter ratios of 100:1 (standard) and 300:1 (custom), with dimensional accuracy of ±0.02mm and surface finish Ra 0.4–1.6μm.
Single-cutter design with 120° point angle and asymmetrical flute directs chips through a V-shaped coolant slot, enabling efficient evacuation in long-depth drilling.
High-Pressure Cooling System
Internal coolant channel (2–10mm diameter) delivers fluid at up to 10 MPa, cooling the cutting edge and flushing chips to maintain consistent performance in high-temperature machining of nickel-based alloys.
Adjustable nozzle tips control coolant velocity (15–30 m/s), optimizing heat dissipation and lubrication for materials like titanium and hardened steel.
Rigid Construction & Alignment
Solid carbide shank (for <12mm diameters) or brazed carbide tip on steel shank provides high torsional stiffness, minimizing deflection to <0.1mm/m of depth.
Pilot diameter (ground to IT5 tolerance) ensures precise initial penetration, supported by optional laser alignment tools for axis positioning within 0.03mm of target.
Customization for Specialized Needs
DLC/CrN coatings on cutting edges enhance wear resistance in abrasive materials, extending tool life by 30% in cast iron machining.
Tailored geometries for through-holes, blind holes, or stepped bores, with adjustable relief angles to optimize chip evacuation in interrupted cutting conditions.
BTA Drill Head: Machines deep holes in titanium alloy landing gear and aluminum wing spars for hydraulic systems, ensuring tight tolerances for fluid control and structural integrity.
BTA Gun Drill: Produces precision bores in aerospace connectors and sensor housings, critical for avionics and fuel systems where dimensional consistency and surface finish (Ra ≤0.4μm) are paramount.
Processes high-pressure pump shafts and heat exchanger tubes made of duplex stainless steel/Inconel, enabling reliable performance in offshore drilling equipment under extreme pressure.
BTA Drill Head: Creates engine cylinder bores and transmission shafts in cast iron/aluminum with Ra <1.6μm for efficient mass production.
BTA Gun Drill: Drills deep holes in orthopedic implants (stainless steel/titanium) and firearm barrels, meeting ISO 13485 and ballistic accuracy requirements.
Machines deep holes in wind turbine hubs, nuclear reactor components, and hydraulic valves, ensuring structural stability and leak-free performance under heavy loads.
Q: What is the key difference between BTA Drill Head and BTA Gun Drill?
A: The BTA Drill Head handles larger diameters (12mm–300mm) for medium-depth holes (up to 30m), while the BTA Gun Drill specializes in smaller diameters (3mm–50mm) with extreme depth-to-diameter ratios (up to 300:1), ideal for precision bores in firearm barrels and medical implants.
Q: Can these tools machine non-ferrous materials like aluminum?
A: Yes. Both tools are optimized for non-ferrous (aluminum, copper) and ferrous (steel, Inconel) materials. The BTA Gun Drill’s single-cutter design and high-pressure coolant system excel in aluminum’s ductile nature, preventing chip welding and surface defects.
Q: What coolant type is recommended for high-temperature applications?
A: Synthetic coolants or high-viscosity oils are ideal for nickel-based alloys (Inconel) to reduce tool wear, while water-based emulsions (5–10% concentration) suffice for general steel machining. Coolant filtration to 5μm is mandatory to protect internal channels.
Q: How to maintain guide pads on the BTA Drill Head?
A: Inspect pad wear every 50 hours; replace when surface roughness exceeds Ra 3.2μm. Regularly clean coolant lines to prevent abrasive particles from damaging pad surfaces, ensuring consistent hole straightness.
Q: Are these tools compatible with CNC machine tool changers?
A: Yes. Both feature standardized interfaces (VDI, Capto, HSK) for seamless integration with automated tool changers, supporting lights-out manufacturing and high-volume production workflows.
| Product Specification | |
Material | Tungsten Carbide |
Type | BTA Bit |
Model Number | AG Carbide |
Brand Name | DR |
Place of Origin | Shandong, China (Mainland) |
Carbide | ISCAR or Country field |
Certification | CE,ISO |
Use | Metal Drilling |
OEM | Can be OEM |
