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CoroTurn® 107

Unobstructed chip flow

Screw clamp design of CoroTurn® 107 ensures stability and unobstructed chip flow while turning. It is easy to handle, clean and maintain.

Excellent chip control

Tool holders are equipped with nozzles that direct precision coolant right at the insert edge to boost process security and provide excellent chip control.

Learn more about precision coolant

Exceptional surface finish

When turning internally or machining slender components, you can rely on the super sharp cutting edges of CoroTurn® 107. The low cutting forces and precision coolant combined with a broad range of inserts ensures high quality surface finish.

View more features
  • Wiper geometries available for high feeds and high quality surface finish
  • Ground, extremely sharp insert offer for exceptional surface finish
  • Holders with conventional and precision coolant design

Find your tool and buy


CoroTurn® 107 for slender components
Internal operations:
  • Long overhangs, 4–6 × D
  • Longitudinal turning and profiling
  • Boring holes, from diameter 6 mm (0.236 inch)
External operations:
  • Small and slender or thin-walled components
  • Longitudinal turning, facing and profiling
  • Steel
  • Stainless steel
  • Cast iron
  • Non-ferrous metals
  • Heat resistant super alloys
  • Hardened materials

Product range

Coromant Capto®


External turning: C3, C4, C5, C6, C7, C8
Internal turning: C3, C4, C5 and C6

Shank tools

8x8 (3/8 inch) to 32x25 (1 1/4 inch)

QS™ Swiss shanks

8x8 (3/8 inch) to 16x16 (5/8 inch)

QS™ shanks

2020 (3/4 inch) and 2525 (1 inch)

Boring bars

5 (¼ inch) to 40 (1 ½ inch​)

CoroTurn® SL heads

Sizes: 16 to 40


  • 5°, 7° clearance angle
  • All types of insert shapes and sizes
  • Geometries and grades for all application areas
  • Insert grades also in advanced cutting materials PCD, CBN, and ceramics
CoroTurn 107 

Tool description

CoroTurn® 107 is optimized for internal and external turning of slender components. Sharp cutting edges and excellent chip control ensure a soft cutting action and low cutting forces, providing an exceptional surface finish.


Guaranteed centre height

Reduce tool set up time for CoroTurn® 107 cylindrical boring bars with EasyFix sleeves. Get guaranteed correct centre height every time with a mounted spring plunger which clicks into a groove in the bar.

Damped tools for improved productivity

Get advanced damping qualities with Silent Tools™ for CoroTurn® 107. These bars and adaptors enable good productivity and stable machining in all turning operations especially for overhangs up to 14 x bar diameter, narrow entries and hard-to-reach seats.

Struggling to find the right tool?

Let CoroPlus® ToolGuide help with quick and accurate tool recommendations, available on all your devices.

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