ADU Drill-Bits

Semi-Automatic Drilling & Countersinking

ADU Drill-Bits

Premium cutting tools for Automatic Drilling Units.

Ideal for applications on Aircraft assembly lines. HTT patented geometries help drill and countersink in One-Shot.

For applications on ADU machines:

  • Atlas Copco;
  • Lübbering;
  • Seti-Tec - Desoutter;
  • P.V. Tool;
  • Quackenbush.

With different configurations, e.g.:

  • Concentric collet;
  • Twist lock;
  • C-Clamp.

Get in contact with our engineers to find out how you can improve your machining.

Customize your tools

High Tech

Tool Features


  • CFRP / Titanium
  • CFRP / Aluminum
  • Titanium / CFRP / CFRP
  • Titanium / Aluminum / CFRP


  • Automatic



Why choose HTT?

Benefits of using HTT solutions


This special geometry was granted an international patent.


One solution that replaces multiple tools, for One-Shot applications.


For drilling in One-Up without disassembling the stacked materials.

Long Tool Life

Our goal is to provide solutions with longer tool life.

Cost Benefit

HTT tools are specifically engineered for helping reduce the cost-per-hole.

Cycle Time Reduction

HTT special geometries with tailored cutting data help reduce job time.

Respect for Nature

HTT respects the nature by reducing emissions and using renewable energy.

Customize your tools

Contact Us

HTT engineers can design custom solutions tailored upon your specific requirements.