Gear Cutting Tools:

Hobs, milling cutters, shaper cutters

Cutters for all gears, worms, splines, and other radially repeating forms.

Premium Cutting Tools

We offer the Helios full line of gear cutting tools including hobs, milling cutters, and shaper cutters in both bore and shank type designs. The Helios line of cutting tools also comes in several materials such as carbide, high speed steel, and state-of-the-art metallurgical materials that increase tool life while controlling cost.

All Helios gear cutting tools can be provided up to AGMA AAA specifications.

Superior Materials

Helios medium- and coarse-pitch cutting tools are produced using a state-of-the-art high speed steel material for green cutting applications. This metal, called MC90, can provide superior tool life versus typical high speed steels and can approach the performance of carbide tools. Even more impressive, this increase in tool life comes at a cost comparable to high-speed steel!

All other industry-standard materials can also be provided, which include S390, ASP2052, ASP2078, and premium grades of carbide.

Superior Tool Life

Helios fine-pitch carbide gear cutting tools feature superior tool life compared to typical tools. These tools are ground such that the tooth profile is accurate from the front to nearly the back of the tooth, which can provide an increased number of resharpenings per tool. This is accomplished without altering flute widths, providing you a tool with up to 15% longer tool life.

Superior Coatings

New! We offer Balzers Altensa coating. This new gear tool coating has been shown to provide 30% increased parts-per-sharpening.

We also offer a variety of tool coatings, such as TiN, TiAlN (“Futura Nano”), AlCrN (“Alcrona”), AlTiCrN (“Exxtral Silver”), AlCrTiN (“Tigral”), and TiAlCN (“Variantic”). Our tool coatings are hand-delivered and provided by our local Balzers or Eifeler-Lafer facilities.



We offer Helios gear hobs with single or multi-start threads and in profiles to suit our customer’s needs:

  • finishing involute
  • involute spline
  • skiving
  • cycloidal
  • pre-grind
  • pre-skive
  • other special profiles
  • custom profiles
Helios Shank-Type Hob

Stock Tools

We also have a limited stock of hobs available for immediate delivery.

Custom Designed

Nearly all Helios cutting tools are custom-designed to each unique part drawing. This ensures the best quality tool design for each specific part. Our factory experts can offer an optimal design for each cutting application.

Helios Ra-Cut hobs are specially manufactured fine-pitch carbide tools that are the solution to achieving higher-quality finish cut gears and greater productivity using re-hobbing or skiving processes compared to traditional hard hobbing tools.

Ra-Cut Hobs

More Parts-per-Resharpening

  • TiN 50% 50%
  • TiAlN 65% 65%
  • AlCrN 78% 78%
  • AlTiCrN 75% 75%
  • Altensa 100% 100%

Improved Tool Life

  • HSS 50% 50%
  • MC90 75% 75%
  • Carbide 100% 100%
Figures are for illustration only. Actual performance is subject to machining parameters.

Premium Helios Gear Cutting Tools

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