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CoroCut® 1-2

Versatile parting and grooving

With more than 700 standard inserts, CoroCut® 1-2 covers all parting and grooving applications in most materials, from standardized grooves to parting off and profiling in heat resistant super alloys.

Cost efficiency with two edges

The two-edged inserts are firmly positioned in the railed insert seat, giving cost-efficiency and stable performance.

Secure and efficient machining

In grooving, chips easily get stuck in the curved groove, leading to insert breakage. CoroCut® 1-2 tools with precision coolant securely evacuate the chips for an uninterrupted machining process.

View More Features
  • Rail insert seat (down to 4 mm insert width) ensures stable and precise insert position
  • Profiling inserts for high-precision profiling operations
  • Wiper design for excellent surface finish
  • Neutral, right- and left-hand style inserts with geometries dedicated for parting off
  • Inserts for hard part turning at high feed rates
  • Blanks for do-it-yourself grinding
  • Grooving inserts in many widths and with many corner radii
  • Tailor Made inserts and tools

Find your tool and buy


  • Parting, external grooving, face grooving, internal grooving, profiling and hard part turning
  • Roughing to finishing

In parting off and external grooving, CoroCut® 1-2 is a cost-efficient solution for depths in which 2-edged inserts can be used.

  • Steel
  • Stainless steel
  • Cast iron
  • Non-ferrous metals
  • Heat resistant super alloys
  • Hardened materials

Product variants

Tool holding

  • Coromant Capto®, VDI and HSK-T for connecting QS shanks and parting blades in turning centers
  • QS stops for connecting QS shanks and Swiss tools, machine-specific adapters
  • Rectangular shanks and boring bars

Plug and play adapters for easy coolant connection

CoroTurn<sup>®</sup> SL blades

CoroTurn® SL cutting blades enable a wide range of tool combinations from a small inventory of adapters and cutting heads.

Insert geometries

  • Parting off: -CF, -CM, -CR, -CS
  • Grooving and side turning: -TF, -TM
  • Grooving: -GF, -GM, -GR
  • Profiling: -RO, -RM; -RE
  • WIPER: -CF, -TF
  • Hard part turning: -XB

Insert grades

  • PVD: GC1105, GC1125, GC1145
  • CVD: GC1135, GC4325, S05F, CG3115
  • CBN: CB7015, CB7025, CB7105 and CB7115
  • PCD: CD10
  • Uncoated: H13A, H10F

Tailor Made

Tailor Made option available

Stable insert position

Inside the tools sits an extremely rigid spring clamping mechanism that ensures a stable and precise insert position. This, in turn, allows for increased feed rates.

See the comparison between spring clamping and screw clamping here.



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Hard part turning with CoroCut® 1-2

The new -XB geometry for hard part turning can operate at very high feed rates, up to 1.2 mm/rev (0.047 in/rev) without compromising surface finish.

Access with angled inserts

Angled inserts are perfectly formed for those difficult-to-access grooves in, e.g., the turbine disc, eliminating the need for special tools.

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Seal fin grooving

Generating small radii profiles with correct profile widths puts demands on a robust tooling solution. CoroCut® 1-2 for seal fin grooving is available in insert widths 1.5 and 2 mm (0.059 and 0.079 inch).

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