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CoroMill® 178

PM-HSS and solid carbide power skiving tools for gear and spline production with high output

High productivity and flexibility

​Possible to machine the complete component in universal 5-axis machine in one single set-up.

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 runs efficiently also in dry conditions, which eliminates coolant costs and makes for environmental- and operator-friendly machining.

View more features
  • ​Powder metal high speed steel (PM-HSS) and solid carbide tools
  • Reconditioning up to 15 times
  • High tool accuracy regarding run-out and pitch compared to indexable tools, providing a very good finishing profile of the gear and spline

Application area

  • Internal and external gears and splines
  • Cylindrical spur and helical gears
  • Roughing to finishing
  • Module range:
    • CoroMill 178 solid cutter: 0.5-5 (DP 50–5)
    • CoroMill 180 indexable cutters: 2–8 (DP 12–3)
  • Use InvoMilling™ for small to medium batch production, and power skiving for mass production
  • Steel

How to order

Power skiving is available as an engineered solution.
For more information, contact your local Sandvik Coromant representative.

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 axes is decisive for productivity – the larger the angle, the better the productivity.  

A further advantage of the machining method is its capability to machine close to shoulders, allowing greater freedom in design of components.


CoroMill® 180 indexable insert cutter for power skiving

CoroMill 180 is a two-edge indexable power skiving solution with fixed inserts.

Power skiving for greater productivity

Today, more than 100 years after its inception, power skiving is becoming a productive reality, thanks to developments in machine tools.

Automotive transmission

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

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