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CoroMill® 179

High productivity and flexibility

Capable of machining the complete component in a multi-task machine or machining center in one single setup, which shortens production time, improves quality, and reduces handling and logistics costs.

Reduced cycle times

​Considerably reduced machining cycle time compared to conventional machining methods, such as broaching, shaping, and hobbing.

Efficient also in dry machining

Power skiving also runs efficiently in dry conditions, eliminating coolant costs and enabling environmentally and operator-friendly machining.

View More Features
  • Adjustable insert seats for high precision
  • Positive rake angle for a light cutting action
  • Easy to exchange inserts
  • Grade 30GM provides very good and predictable tool life
  • Good insert position repeatability

Application area

  • Internal and external gears and splines
  • Cylindrical spur and helical gears
  • Roughing to finishing
  • Module range:
    • CoroMill® 178 solid cutters: 0.5–5 (DP 50–5)
    • CoroMill® 179 indexable, one-edge cutters: 2–5 (DP 12–5)
    • CoroMill® 180 indexable, two-edge cutters: 2.5–8 (DP 10–3.2)
  • Use InvoMilling for small to medium batch production, and power skiving for mass production
  • Steel

Product range

CoroMill<sup>®</sup> 179 one-edge, indexable insert cutter

Outer diameter:
63–500 mm (2.48–19.7 inches)

Bore diameter:
16–100 mm (0.630–3.94 inches)

Module, spline:
2.5–8 (DP 10–3.2)

Module, gear:
2.5–8 (DP 10–3.2)

Tip radius:
0.1 mm (0.004 inch)

How to order

Power skiving is available as an Engineered solution. For more information, contact your local Sandvik Coromant representative.
The Sandvik Coromant solution offers the tooling, the application support, and a service offer with technical feasibility consultancy.

Chamfering and deburring tools to complement the power skiving tools are also available.

What is power skiving?


Power skiving is a continuous cutting process that enables all machining to be carried out in a single setup. In essence, it is a combination of hobbing and shaping. The intersecting angle between tool and gear axis as well as the revolution speed contribute to productivity.

Another advantage of power skiving is its capability to machine close to shoulders, allowing greater freedom in component design.


CoroMill® 178 solid tools for power skiving

CoroMill® 178 powder metal, high speed steel and solid carbide tools with high accuracy regarding run-out and pitch, providing an optimal finishing profile.

CoroMill® 180 indexable, two-edge insert cutter for power skiving

CoroMill® 180 is a two-edge, indexable, power skiving solution with fixed inserts. It has a railed insert seat for excellent, repeatable accuracy.

Automotive transmission

Sandvik Coromant offers tools for most transmission components, backed by in-depth application know-how.

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