Negative Turning Inserts

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Reliable Contour Machining with the CNMG-PF RT315G

The CNMG-PF RT315G indexable insert is designed as a problem-solver for chip control in finishing and medium machining of steel. Thanks to the special PF geometry, it is ideal for use in soft and tough materials, delivering optimal results in chip formation and positively influencing surface qualities. Manufactured from next-generation CVD-coated P15 carbide, this tool demonstrates its strengths particularly in continuous cutting operations.

Advantages of the CNMG-PF RT315G

• Improved chip formation in soft and tough materials due to the advanced PF geometry
• Positive influence on surface finishes during medium machining and finishing tasks
• Wear-resistant P15 carbide grade with CVD coating for continuous cutting
• Designed for reliable turning operations on steel (ISO P)
• High flexibility thanks to a selection of different corner radii
• Convenient packaging unit containing 10 pieces

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Controlled chip formation in steel turning

The indexable insert CNMG-PF in grade RT325G is designed as a practical problem-solver for steel machining. Its targeted chipbreaker geometry aims to provide optimal results in chip formation, which is particularly beneficial when cutting soft and tough materials. This facilitates good surface finishes during both finishing and medium turning operations.

Advantages of the Indexable insert - CNMG...-PF RT325G

• CVD-coated P25-grade carbide supports wear resistance
• Special PF geometry for improved chip control in soft steels
• Convincing performance in finishing and medium machining tasks
• Suitable for continuous as well as slightly interrupted cutting
• Cost-effective usage thanks to double-sided negative shape

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Wiper indexable insert for efficient steel machining

The indexable insert of the CNMG...-W series featuring the RT315G grade is a high-performance solution for finishing and medium machining of steel. Equipped with a special wiper geometry, this version extends the contact area with the workpiece surface. This allows operators to achieve very good surface finishes at consistently high feed rates or to reduce machining times while maintaining finish quality. Consequently, subsequent operations are often rendered unnecessary. The CVD-coated P15 carbide ensures thermal stability in continuous cutting.

Advantages of Indexable insert - CNMG...-W RT315G

• Significantly improved surface finish due to integrated wiper cutting edge
• Shorter machining times through potential feed rate increases
• Supports efficient workflows without additional polishing
• Thermal stability thanks to CVD-coated P15 carbide
• Optimized for continuous cuts in steel materials

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Indexable insert CNMG-PM RT250+ for steel turning

The CNMG-PM RT250+ indexable insert is explicitly designed for the professional medium machining of steel. Featuring a 2-color CVD coating and manufactured from a tough P20-P30 carbide grade, this tool provides excellent conditions for both continuous and light interrupted cuts.

The standard CNMG shape supports efficient workflows in modern turning operations.

Advantages of CNMG-PM RT250+

• 2-color CVD coating aids in practical wear identification
• P20-P30 carbide grade dedicated to reliable steel processing
• Geometry tailored for continuous and light interrupted cutting conditions
• Available corner radii offer versatile adaptation to the respective workpiece contour
• Convenient packaging unit containing 10 pieces

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High-performance turning insert for steel processing

The CNMG...-PR RT215+ is a highly wear-resistant, negative 80° rhombic insert designed specifically for demanding roughing operations on steel components. Featuring a robust cutting edge and a CVD coating optimized for continuous cuts, this latest-generation P10 carbide grade provides excellent stability and reliable process security during full-cutting operations.

Advantages of CNMG...-PR RT215+

• Perfectly suited for roughing steel under continuous cutting conditions
• State-of-the-art CVD-coated P10 carbide grade for exceptional wear resistance
• Four usable cutting edges thanks to the negative CNMG shape
• Strong 80° geometry withstands high cutting loads during full cuts
• Supplied in a convenient packaging unit of 10 pieces

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Reliable roughing of steel

The indexable insert CNMG...-PR RT225+ is a high-performance solution for heavy-duty turning in steel materials. Featuring a robust CVD-coated P20 carbide substrate, it performs consistently in continuous and light interrupted cutting conditions.

Advantages of CNMG...-PR RT225+

• Optimized geometry specifically developed for efficient roughing operations
• Latest generation CVD-coated P20 carbide grade for excellent wear protection
• Highly resilient against light interrupted cuts in steel
• Negative 80° shape supports stable and dependable cutting performance

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High-performance CNMG-PM turning inserts for steel machining

The Indexable insert - CNMG...-PM RT215+/225+ is specifically designed for the medium machining of steel materials. Featuring a negative 80° geometry and a PM chipbreaker, it ensures reliable chip control and stable cutting operations. This version provides professional machinists with well-conceived options for varying cutting conditions, relying on the advanced RT215+ and RT225+ grades.

Cut K for RT215+:

Cut K-LU for RT225+:

Advantages of Indexable insert - CNMG...-PM RT215+/225+

• CVD-coated carbide grades designed to support wear resistance during steel turning
• RT215+ (P10) promotes cost-effectiveness in continuous full-cutting operations
• RT225+ (P20) supports high reliability in continuous and light interrupted cuts
• PM chipbreaker facilitates process-safe chip evacuation for medium machining tasks

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High-performance insert for steel machining

The CNMM...-SXR RT325G is a turning insert specifically designed for roughing steel. The combination of a strong rhombic basic shape and the modern RT325G carbide grade with CVD coating provides a practical foundation for efficient and reliable machining processes. Its geometry supports high material removal rates during continuous to slightly interrupted cuts.

Advantages of CNMM...-SXR RT325G

• Designed for high removal rates during the roughing of steel alloys
• Strong 80° rhombic shape for high edge stability
• Next-generation CVD-coated P25-grade carbide for reliable wear resistance
• Robust design conceptualized for continuous and slightly interrupted cutting
• Supplied in an economical packaging unit of 10 pieces

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Robust roughing of steel components

The indexable insert CNMM...-SXR RT315G is specifically designed for the roughing of steel under continuous cutting conditions. Featuring a solid 80° rhombus shape and the next-generation CVD-coated grade RT315G, this turning tool provides a stable basis for demanding machining tasks and a high material removal rate.

Advantages of the CNMM...-SXR RT315G

• Strong CNMM design suitable for heavy roughing operations in steel
• Advanced CVD-coated P15 carbide (RT315G) for reliable performance
• Engineered to support efficiency during continuous cuts

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High-precision CNMG-SF insert for fine turning

The indexable insert CNMG…-SF RTC+ is a tailored tooling solution for professional finishing operations on steel and stainless steel. Featuring the PVD-coated cermet grade RTC+, this insert supports consistently high surface qualities during continuous cutting processes. The proven negative CNMG geometry creates excellent conditions for low-vibration and dimensionally accurate turning results in CNC manufacturing.

Advantages of the indexable insert CNMG...-SF RTC+

• PVD-coated RTC+ cermet grade designed for superior surface finishes
• Provides reliable wear resistance under continuous cutting conditions
• SF chipbreaker supports efficient chip control at low feed rates
• Offers a practical solution for machining steel and stainless steel

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High-productivity wiper turning insert for stainless steel

The CNMG...-W RT255M combines the proven 80° rhombic shape with an advanced wiper geometry and the PVD-coated RT255M carbide grade (M20–M30). Designed specifically for finishing and medium machining of stainless steels, this insert ensures outstanding surface finishes, even in light interrupted cuts.

Advantages of CNMG...-W RT255M

• Significantly improved surface quality thanks to the integrated wiper geometry
• Reduced machining times by maintaining high feed rates
• Robust PVD coating RT255M supports reliable performance in stainless steel
• Consistent dimensional accuracy in continuous and light interrupted cuts

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Precision Indexable Insert for Stainless Steel

The CNMG...-FE RT305 indexable insert is a well-thought-out solution for the efficient finishing of stainless steel. Equipped with the specific FE geometry and the modern PVD grade M20-M30, this cutting tool opens up flexible application possibilities for continuous as well as slightly interrupted cuts. Thus, the turning insert supports reliable dimensional accuracy in professional machining operations.

Advantages of Indexable insert CNMG...-FE RT305

• PVD grade M20-M30 featuring a wear-resistant coating for stainless steel
• Specific FE geometry designed for continuous and slightly interrupted cutting conditions
• Creates excellent conditions for reliable and dimensionally accurate finishing
• Supports the achievement of consistently high surface qualities

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Reliable Machining of Stainless Steel

The CNMG...-MM RT250M turning insert is specifically designed for the medium machining of stainless steel. Combining a PVD-coated M20-M30 carbide substrate with an MM chipbreaker, it ensures consistent performance during continuous and light interrupted cuts.

Advantages of turning insert CNMG-MM RT250M

• PVD-coated M20-M30 carbide for reliable machining of stainless steel components
• Proven CNMG geometry for stable clamping in standard tool holders
• Well-designed MM chipbreaker, ideal for medium machining tasks
• Practical packaging unit of 10 pieces tailored to professional requirements

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High-performance CNMG-MR indexable insert for stainless steel

The PVD-coated turning insert CNMG...-MR RT250M is designed for professional stainless steel machining. With its proven MR geometry and a tough M20-M30 carbide grade, this tool handles continuous as well as light and heavy interrupted cuts during roughing operations.

Advantages of CNMG...-MR RT250M

• Convinces with high wear resistance due to the PVD coating
• Is a well thought-out solution for demanding roughing tasks
• Creates good conditions for stable processes even in interrupted cuts
• Opens up flexible applications for various stainless steels

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High-performance roughing in stainless steel

The CNMM indexable insert featuring the SXR geometry and RT255M grade is engineered for demanding roughing operations in stainless steel. The PVD-coated M20-M30 carbide makes this insert an excellent choice for continuous and light interrupted cuts, ensuring stable and reliable machining processes.

Advantages of CNMM-SXR RT255M

• Wear-resistant, PVD-coated M20-M30 carbide for a long tool life in stainless steel
• Robust CNMM shape, specifically designed for demanding roughing tasks
• SXR geometry supports process reliability during continuous and light interrupted cuts
• First choice for economic and dependable stainless steel machining
• Convenient and economic packaging unit (10 pieces)

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High-performance turning of stainless steel

The indexable insert CNMG...-MR RT255M is specifically designed for the demanding roughing and medium machining of stainless steels. Thanks to its PVD-coated M20-M30 carbide, this solution offers robust reliability during daily operations across varying cutting requirements.

Advantages of CNMG...-MR RT255M

• Robust design for roughing and medium turning applications
• Specialized RT255M grade acts as a prime choice for stainless steel
• Reliable performance in continuous and interrupted cutting conditions
• Modern PVD coating supports efficient and structured workflows
• Conveniently supplied in a practical packaging unit of 10 pieces

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CNMG...-KC RT150K for efficient cast iron machining

The indexable insert CNMG...-KC RT150K is a professional solution designed for the medium machining of cast iron. Featuring the durable CVD coating of the RT150K grade (K10-K20), this cutting tool supports reliable turning processes in continuous as well as light and heavily interrupted cutting conditions.

Advantages of the CNMG...-KC RT150K

• Stable, negative 80° geometry for high process reliability
• Wear-resistant CVD coating optimized for cast iron materials
• Suitable for continuous and interrupted cutting applications
• Practical handling with a standard packaging unit of 10 pieces

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Precise Aluminum Machining with CNMG-ALP RT100

The indexable turning insert CNMG...-ALP in the RT100 grade is specifically engineered for the demanding machining of aluminum, plastics, and other non-ferrous metals. With its uncoated K10-K15 carbide substrate and highly sharp cutting edge, this insert promotes a very smooth, clean cut and effectively prevents the undesirable formation of a built-up edge.

Advantages of Indexable insert - CNMG...-ALP RT100

• Highly sharp cutting edge for excellent surface finishes on soft materials
• Uncoated K10-K15 carbide minimizes the risk of built-up edges
• Free-cutting ALP geometry significantly reduces cutting forces
• Ideally suited for continuous and light interrupted cuts

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Efficient machining of aluminum and plastics

The indexable insert CNMG...-ALZ RT100 is a precisely matched solution for turning aluminum, plastics, and non-ferrous metals. The uncoated K10-K15 carbide enables clean cutting processes and is designed for continuous and light interrupted cuts.

Advantages of the CNMG...-ALZ RT100

• Uncoated K10-K15 carbide specialized for aluminum and plastics
• Suitable for continuous and light interrupted cutting conditions
• Available with 0.4 mm and 0.8 mm corner radii for flexible turning applications

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Precision Indexable Insert for Special Materials

The CNGG...-SF RT110S indexable insert is engineered for the demanding finishing of heat-resistant super alloys and special materials. Featuring an advanced PVD-TiAlSiN coating on a tough S10 carbide substrate, it ensures excellent wear resistance during continuous cutting operations.

Advantages of CNGG...-SF RT110S

• High process stability when machining difficult-to-cut special materials
• Excellent surface finishes due to the dedicated SF geometry for finishing
• High thermal resistance and durability provided by the PVD-TiAlSiN coating
• Reliable performance in continuous cutting conditions