GT-12 Left Hand Helix Drill

Modifications

REDUCED SHANK DIAMETER

  • To suit your operational requirements like chuck sizes.

GT-12 Left Hand Helix Drill

The GT-12 Left Hand Helix Drill by Gandtrack is a high-performance solid carbide drill specifically engineered for non-bonded carbon and aluminium stacks. Featuring a right-hand cutting direction with a left hand helix, this advanced geometry pushes swarf forward through the pilot hole – protecting the inner surface of carbon fibre layers from damage, delamination, or scoring during exit.

Perfect for aerospace composite drilling, this drill ensures clean hole finishes, controlled chip flow, and long tool life in demanding materials.

Key Benefits of the GT-12 Left Hand Helix 

  • Left Hand Helix Geometry: Directs swarf away from the carbon layer to avoid internal damage.

  • Right Hand Cutting: Compatible with conventional spindle rotation and CNC programs.

  • Optimized for Stack Drilling: Ideal for hybrid materials like carbon + aluminium or carbon + titanium.

  • Clean Finishes: Reduces fibre breakout and delamination in composite materials.

For Best Use On

  • Carbon + Aluminium Stacks (non-bonded)

  • Carbon Fibre and Graphite Composites

  • Hybrid Aerospace Materials

  • Reinforced Polymers with Metallic Backing

SIZES AVAILABLE:

  • From 2.5mm – 20.0mm +

Intermediate sizes and tolerances upon request

 

Diamond Like coating (DLC)

Tetrahedral Amorphous Carbon (ta-C)

Ideal for cutting tools used in machining hard materials and composites. ta-C coatings are used when maximum durability and a high-quality finish are required, such as in aerospace and high-precision industries.

Titanium Nitride (TiN)

Commonly used coating on cutting tools like drills and end mills, TiN is effective for general machining of steel and aluminium. It’s not as suited for high-speed or abrasive materials.

Titanium Carbon Nitride (TiCN)

 TiCN is effective for machining hard materials and composites. It’s used on tools for high-speed machining and applications requiring higher hardness and wear resistance.

Titanium Aluminium Nitride (TiAlN)

Ideal for machining hard materials like stainless steel and high-temperature alloys. TiAlN is often used in aerospace and automotive industries for high-speed and heavy-duty applications.

Titanium Silicon Nitride (TiSiN)

Used in cutting tools for machining difficult-to-cut materials and composites. TiSiN is beneficial for applications that involve high temperatures and abrasive materials.

Titanium Chromium Nitride (TiCrN)

Suited for general machining applications, including those involving tougher materials and composites. TiCrN coatings are often used in manufacturing tools and components that experience moderate to high wear.