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CoroMill 316 The exchangeable-head milling system

Versatile in the widest sense of the word, CoroMill® 316 can be applied for high feed face milling, slot milling, helical interpolation, shoulder milling, profile milling, and chamfer milling of components in all material groups from ISO P to ISO S.

The exchangeable milling heads allow you to quickly, easily, and accurately switch between various operations. With a quick tool change, you are able to get the perfectly suited end mill type, radius variation, teeth frequency, geometry, and grade. CoroMill 316 end mills are even suitable for five axis milling of flanks, which often requires tapered tools for stability at longer tool reach.



  • Great flexibility and productivity plus lower tool inventory costs 
  • A strong cutting head and shank interface provides high strength for roughing and high rigidity for finishing
  • High stiffness and low deflection make it possible to machine deep pockets with long overhang, as well as allowing high accuracy in finishing operations
  • Internal coolant on selected assortment delivers superior chip evacuation and a secure cutting process



The Coromant EH coupling is based on a self-centering screw thread for secure mounting and maximum strength and security. The coupling has a physical stop, which makes it easy to feel when the head is correctly tightened and helps to not overstress the clamping.

  • Full face and taper contact for best stability 
  • Patented coupling designed to minimize bending
  • Optimized geometries for roughing, finishing, profiling, and chamfering 
  • Grades for most materials



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ISO application area


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Tool length

< 3 x DC​

< 4 x DC​​

< 10 x DC

​< 12 x DC

​Stable conditions Comparable to solid end mills

Quite stable
Not as stable as solid end mills​

Low stability

Very low stability

Steel shank applications​

All types of inserts and applications​

High feed, profiling, chamfering, shoulder milling, limited slot milling​

High feed, profiling, chamfering, shoulder milling, limited slot milling​​

High feed, profiling, chamfering, not suitable for shoulder milling

Solid carbide shank applications​

Profiling, chamfering, finishing, and semi-finishing operations​​

Profiling, chamfering, finishing, and semi-finishing operations ​​​

Profiling, chamfering, finishing, and semi-finishing operations​​

Profiling, chamfering,
finishing ,and semi-finishing operations



Product range​

Diameter range for heads



Shank assortment
Material​Steel, 43.5 HRc, mm (inches)​Solid carbide, mm (inches)
Shank diameter​10-32 (0.394-1.259)​10-25 (0.394-0.984)
​StyleStraight 90°, Conical 80°, 85°, and 89°​​Straight 90°, Conical 89°
Length​65-250 (2.559-9.842)​100-200 (3.937-7.874)


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