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CoroMill® 345

Low cost per component

​Double-sided inserts with eight cutting edges for optimal performance when it comes to material removal and surface finish, paving the way for truly cost-efficient machining.

Secure machining

Extremely robust cutter body and shim-protected tip seats give security to the machining process, making the cutter body a good choice if unmanned production is a priority.

Internal coolant

​Internal coolant supply to each insert pocket ensures effective chip evacuation and good performance also in demanding materials.

View more features
  • Wiper inserts for excellent surface finish at high feed per tooth
  • Optimized machine utilization and productivity with four different pitches
  • Wide application area – use the same concept for different applications

Find your tool and buy

  • Face milling
  • Roughing to finishing
  • Maximum depth of cut 6 mm (0.236 inch)
  • Steel
  • Stainless steel
  • Cast iron
  • Heat resistant super alloys
  • Hardened materials

Product range

Cutter body

Diameter: 40–250 mm (1.500–10.000 inch)
Pitches: Coarse (L), Close (M), Extra close (H), Extra close plus (HX)
Shim protection
Through coolant up to 125 mm (4.921 inch)


Insert size: 13
Grades: CVD, PVD, uncoated and cermet inserts
Geometries: Light, medium and heavy geometries
Wiper inserts available for ISO P, M and K materials
Wiper edge length (BS):
working inserts: 2.0 mm (0.079 inch)
wiper inserts: 5.0 mm (0.197 inch) and 8.0 mm (0.315 inch)

Tool holding

Arbor, Coromant Capto®, cylindrical shank, Weldon and CIS Arbor mounting

Positive cutting action

The positive axial inclination at small depths of cut offers a soft cutting action with low axial pressure on the workpiece. As the depth of cut increases, a more upright part of the cutting edge is engaged, providing a more substantial structure for high security, especially in tougher cuts.



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CoroMill® 345 machining

CoroMill® 345 offers secure machining thanks to shim-protected tip seats and a tough cutter body.

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Face milling in stainless steel

See CoroMill® 345 perform in stainless steel machining.

New grades optimized for steel milling

CoroMill® 345 is now available with CVD grades GC4330 and GC4340 with Inveio® technology for improved tool life and increased process security.

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