Deep Hole Drilling Tools & Gundrills botek America
Deep Hole Drilling Tools, Gundrills & Custom Tooling for U.S. Manufacturers
botek America provides precision gundrills, BTA drilling tools, ejector systems, solid carbide drills, custom tooling, regrinding, coating, and application engineering support for demanding manufacturing applications.
German-engineered tooling. U.S.-based support. Built for accuracy, tool life, process stability, and production reliability.
What Does botek America Do?
botek America supplies deep hole drilling tools and application-specific tooling solutions for precision manufacturers. Our solutions include gundrills, BTA tools, ejector drilling systems, solid carbide drills, custom tools, regrinding, coating, customer testing, and process optimization.
✔ Precision gundrills for accurate deep-hole drilling
✔ BTA and ejector tools for larger or specialized applications
✔ Custom tooling for difficult materials, tolerances, and geometries
✔ Regrinding to extend gundrill tool life and reduce tooling cost
✔ Coating on new tools for improved wear resistance and tool life
✔ Application engineering support for process stability
Deep-Hole Drilling Solutions for Precision Applications Precision Applications
Deep-hole drilling requires more than a standard drill. It requires the right tool geometry, coolant strategy, chip evacuation method, machine setup, and process control. botek America supports manufacturers with tooling systems for gundrilling, BTA drilling, and ejector drilling applications.
Gundrilling Process
BTA Drilling System
Ejector Drilling System
Gundrilling Process
Gundrilling is used for producing accurate, straight, deep holes with reliable surface quality. botek America provides gundrills and engineering support for applications requiring precision, stability, and repeatability.
BTA Drilling System
BTA drilling is commonly used for larger-diameter and high-output deep-hole drilling applications. botek America supports BTA tooling selection, tool design, and process optimization.
Ejector Drilling System
Ejector drilling uses a double-tube system and can be suitable for specific deep-hole drilling applications on certain machine setups. botek America provides ejector tooling and application support for specialized drilling requirements.
Deep-Hole Drilling Tools and Cutting Tool Systems
botek America provides precision tooling systems for deep-hole drilling and high-performance machining applications. Our product range includes single-flute gundrills, twin-fluted drills, BTA drilling tools, ejector drilling tools, solid carbide drills, accessories, and custom-engineered cutting tools designed for accuracy, chip evacuation, tool life, and process reliability.
Whether you need a standard tool, custom tooling, or application support, our team helps you select the right solution for your drilling requirement.
Custom Deep-Hole Drilling Tools for Demanding Applications
Special drilling requirements need more than standard tooling. botek America works with manufacturers to design custom gundrills, BTA tools, ejector tools, and special cutting tools for difficult materials, tight tolerances, complex geometries, and high-performance production needs.
What Makes Us Your Problem Solver?
✔ Custom-designed tools tailored to your exact process requirements
✔ High-performance machining strategies developed with you, not just for you
✔ Deep-hole drilling expertise across aerospace, medical, automotive, powertrain & more
✔ Application engineering support to ensure stability, efficiency & long tool life
✔ Tools and solutions developed individually for you and with you
Deep-Hole Drilling Solutions for Your Industry
botek America supports manufacturers in industries where precision holes, difficult materials, tight tolerances, tool life, and reliable production performance are critical. From standard tooling to custom-engineered deep-hole drilling solutions, our team helps match the right gundrill, BTA tool, ejector system, or support component to your application.

Aerospace & Defense
Precision deep-hole drilling tools for difficult aerospace materials, structural components, landing gear, turbine-related parts, and high-reliability manufacturing.

Powertrain Technology
Gundrills, BTA tools, and custom tooling for shafts, oil holes, automotive components, high-volume repeatability, tool life, and production stability.

Energy Technology
Deep-hole drilling tools for complex components used in regenerative and fossil energy production, where reliability and machining performance matter.

Tool & Mold Making
Deep-hole drilling solutions for mold cooling channels, hard materials, long holes, surface quality, and custom tool design.

Medical Technology
Custom drilling tools for small-diameter precision holes, difficult-to-machine materials, strict quality requirements, and consistent surface finish.

Hydraulics & Pneumatics
Precision tooling and process support for cylinder bores, manifolds, long holes, straightness requirements, and reliable component production.
Services
Application Engineering, Regrinding, Coating and Process Support
botek America supports manufacturers through the full deep-hole drilling process, from application review and tooling selection to in-house trials, process optimization, regrinding, coating, and after-sales support. You submit the drilling application, and our U.S. application engineering team works with botek experts in Germany to develop the right process and tooling solution for your production needs.
How botek America Works
botek America imports and distributes botek® deep-hole drilling tools engineered in Germany, provides application engineering support, and resharpens gundrills in-house at our Roselle, Illinois facility.
A few things worth knowing before you reach out:
- All tooling is manufactured by botek® in Germany and imported by botek America for U.S. distribution
- Gundrill resharpening is done in-house in USA, using a 5-axis grinding machine
- Coating is available on new tools only—we do not recoat tools sent in for resharpening
- Germany resharpening is available for aerospace customers only and is not a standard service
Why Manufacturers Choose botek America
Manufacturers choose botek America when deep-hole drilling accuracy, repeatability, coolant control, chip evacuation, tool life, and process stability are critical. Our team supports you with precision tooling, application engineering, custom solutions, in-house services, and technical support designed to reduce downtime and improve drilling performance.
Deep-Hole Drilling Specialization
Deep-hole drilling is not an add-on service for botek America. It is a core area of expertise, supported by specialized gundrills, BTA tools, ejector systems, process knowledge, and application-focused engineering.
German Engineering with U.S.-Based Support
botek America combines German tooling expertise with responsive U.S.-based support from Roselle, Illinois, helping manufacturers access proven deep-hole drilling technology with local service and technical coordination.
Application-Specific Tooling
Every drilling application is different. botek America helps manufacturers select or develop tooling based on material, hole diameter, depth, tolerance, surface finish, coolant pressure, machine setup, and production goals.
Support Across the Full Tool Life Cycle
From tool selection and custom design to in-house trials, regrinding, coating, process optimization, and after-sales support, botek America helps maintain performance throughout the full tooling life cycle.
Built for Demanding Industries
botek America supports manufacturers in aerospace, defense, medical technology, powertrain, tool and mold making, hydraulics, pneumatics, energy, and machine engineering where precision, reliability, and repeatable production matter.
Common Deep-Hole Drilling Problems We Help Solve
Deep-hole drilling issues can increase scrap, downtime, tool cost, and production delays. botek America helps manufacturers identify the right tool, geometry, coating, cutting data, and process setup.
Deep-Hole Drilling Tools FAQ
Deep-hole drilling is a machining process used to create holes with a high depth-to-diameter ratio. It requires specialized tooling, coolant delivery, chip evacuation, and process control.
A gundrill is a specialized deep-hole drilling tool designed to produce accurate, straight holes with controlled coolant delivery and chip evacuation.
Gundrilling is commonly used for precision deep holes in smaller to medium diameters, while BTA drilling is often used for larger-diameter or higher-output deep-hole drilling applications.
Ejector drilling may be suitable for certain deep-hole drilling applications where a double-tube system and specific machine conditions are appropriate.
Yes. botek America supports custom tool design for applications involving difficult materials, tight tolerances, complex geometries, and unique production requirements.
Yes. botek America offers in-house regrinding to help extend gundrill tool life and reduce tooling cost. Coating is also available on new tools to improve wear resistance and cutting performance.
Yes. botek America provides application engineering and process optimization support for issues such as tool life, cutting values, chip evacuation, cycle time, and production stability.
botek deep-hole drilling tools are used in aerospace, defense, medical technology, powertrain, mold and die, hydraulics, pneumatics, energy, and machine engineering applications.
Upcoming Exhibitions
See us at IMTS 2026 at Booth # 431233

See us at MD&M 2026 at Booth #2215

Need Help Selecting the Right Deep-Hole Drilling Tool?
Send us your drawing, material, hole diameter, drilling depth, tolerance requirements, machine setup, and production goals. botek America’s application engineering team can help recommend the right gundrill, BTA tool, ejector system, custom tool, regrinding, coating, or process solution.
Proud Member of NSSF
botek America is proud to be a member of the National Shooting Sports Foundation.
Learn More about this membership here.









