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Negative Turning Inserts

Negative turning inserts have a cutting angle smaller than zero. The cutting angle required for machining results from the positioning of the insert in the tool holder.
Our range of negative turning inserts includes a wide variety of grades, geometries, and applications.
Here, you will find the right insert for every material.

No minimum order value

Free Shipping within Germany

on orders over €150

Telephone order and advice

Tel.: +49 (0)208 - 848 67 82

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  • Materials: Cast Iron
  • Materials: Stainless Steel
  • Materials: Steel
  • Inserts: DN..
  • Inserts: SN..
  • Inserts: WN..
Indexable insert - WNMG...-W RT315G
  • New

Indexable insert - WNMG...-W RT315G

Price ab €4.90
Availability: 2147483377 In Stock

Shape WNMG
Processing Finish/Medium
Workpiece Material Steel
Grade RT315G: Wear-resistant P10–P20 grade carbide with state-of-the-art CVD coating for steel machining.
Packaging unit 10 Pc.

Maximum surface quality with maximum productivity – our new turning insert with wiper geometry
Compared to conventional turning inserts, the wiper version offers decisive advantages: thanks to its special geometry, the contact area with the workpiece surface is extended, resulting in significantly improved surface finishes – all while maintaining high feed rates.
What this means for you: shorter machining times combined with excellent surface quality – often eliminating the need for additional finishing operations such as grinding or polishing. Ideal for applications where precision and efficiency are equally important.
Experience the perfect combination of dimensional accuracy, long tool life, and increased productivity – with our wiper insert for modern machining processes.

r L I.C. S
WNMG 080408-W RT315G 0,8 8,7 12,7 4,76

Indexable insert - DNMG...-FP RT150+

Price ab €5.70
Availability: 2147483297 In Stock

Shape DNMG
Processing Finish
Workpiece Material Steel
Grade RT150+:
CVD-coated 2-color coated P10-P20 carbide for steel
Packaging unit 10 Pc.

  r L I.C S d
DNMG 150604-FP RT150+ 0,4 15,5 12,7 6,35 5,16
DNMG 150608-FP RT150+ 0,8 15,5 12,7 6,35 5,16

Indexable insert - DNMG...-PM RT250+

Price ab €4.90
Availability: 2147483367 In Stock

Shape DNMG
Processing Medium
Workpiece Material Steel
Grade RT250+:
CVD coated 2 color coated P20-P30 carbide for steel
Packaging unit 10 Pc.

  r L I.C S d
DNMG 110404-PM RT250+ 0,4 11,6 9,525 4,76 3,81
DNMG 110408-PM RT250+ 0,8 11,6 9,525 4,76 3,81
DNMG 110412-PM RT250+ 1,2 11,6 9,525 4,76 3,81
DNMG 150604-PM RT250+ 0,4 15,5 12,7 6,35 5,16
DNMG 150608-PM RT250+ 0,8 15,5 12,7 6,35 5,16
DNMG 150612-PM RT250+ 1,2 15,5 12,7 6,35 5,16
DNMG 150616-PM RT250+ 1,6 15,5 12,7 6,35 5,16

Indexable insert - DNMG 1506...R/L RT250

Price ab €5.70
Availability: 2147483487 In Stock

Shape DNMG
Processing Roughing/Medium
Workpiece Material Steel
Grade RT250: CVD-coated P25-TIN hard metal for general steel processing
Packaging unit 10 Pc.

  r L I.C S d
DNMG 150604-R/L RT250 0,4 15,5 12,7 6,35 5,16
DNMG 150608-R/L RT250 0,8 15,5 12,7 6,35 5,16

Indexable insert - DNMG...-FE RT305

Price ab €4.70
Availability: 2147483407 In Stock

Shape DNMG
Processing Finish
Workpiece Material Stainless Steel
Grade RT305: PVD grade M20-M30 for stainless steel
with the most modern coating
Packaging unit 10 Pc.

r L I.C S d
DNMG 110404-FE RT305 0,4 11,6 9,525 4,76 3,81
DNMG 110408-FE RT305 0,8 11,6 9,525 4,76 3,81
DNMG 150604-FE RT305 0,4 15,5 12,7 6,35 5,16
DNMG 150608-FE RT305 0,8 15,5 12,7 6,35 5,16
DNMG 150612-FE RT305 1,2 15,5 12,7 6,35 5,16

Indexable insert - DNMG 1506...R/L RT305

Price ab €5.70
Availability: 2147483467 In Stock

Shape DNMG
Processing Roughing/Medium
Workpiece Material Stainless Steel
Grade RT305: PVD grade M20-M30 for stainless steel
with the most modern coating
Packaging unit 10 Pc.

  r L I.C S d
DNMG 150604-R RT305 0,4 15,5 12,7 6,35 5,16
DNMG 150604-L RT305 0,4 15,5 12,7 6,35 5,16
DNMG 150608-R RT305 0,8 15,5 12,7 6,35 5,16
DNMG 150608-L RT305 0,8 15,5 12,7 6,35 5,16

Indexable insert - DNMG...-MM RT250M

Price ab €4.70
Availability: 2147483487 In Stock

Shape DNMG
Processing Medium
Workpiece Material Stainless Steel
Grade RT250M:
PVD coated M20-M30 carbide, 1st choice for stainless steel
Packaging unit 10 Pc.

r L I.C. S
DNMG 110404-MM RT250M 0,4 11 9,525 4,76
DNMG 110408-MM RT250M 0,8 11 9,525 4,76
DNMG 150604-MM RT250M 0,4 15 12,7 6,35
DNMG 150608-MM RT250M 0,8 15 12,7 6,35

Indexable insert - DNMG...-SF RTC+

Price ab €4.70
Availability: 214748354 In Stock

Shape DNMG
Processing Finish
Workpiece Material Steel and Stainless Steel
Grade RTC+: PVD coated P05-P15 Cermet grade for finishing of steel and stainless steel
Packaging unit 10 Pc.

 

r L I.C S d
DNMG 110404-SF RTC+ 0,4 11,6 9,525 4,76 3,81
DNMG 150604-SF RTC+ 0,4 15,5 12,7 6,35 5,16
DNMG 150608-SF RTC+ 0,8 15,5 12,7 6,35 5,16

Indexable insert - DNMG...-KC RT150K

Price ab €5.90
Availability: 2147483627 In Stock

Plate Shape DNMG
Processing Medium
Workpiece Material Cast Iron
Grade RT150K: CVD-coated K10-K20 carbide for cast ironmachining
Packaging unit 10 Pc.



  r L I.C S d
DNMG 150608-KC RT150K 0,8 15,5 12,7 6,35 5,16
DNMG 150612-KC RT150K 1,2 15,5 12,7 6,35 5,16

Indexable insert - SNMG...-PM RT225+

Price ab €4.40
Availability: 2147483517 In Stock

Shape SNMG
Processing Medium
Workpiece Material Steel
Grade RT225+: CVD coated 2-color P20 carbide the latest
generation for general steel processing
Packaging unit 10 Pc.

  r L I.C S
SNMG 120404-PM RT225+ 0,4 12,7 12,7 4,76
SNMG 120408-PM RT225+ 0,8 12,7 12,7 4,76
SNMG 120412-PM RT225+ 1,2 12,7 12,7 4,76
SNMG 150608-PM RT225+ 0,8 15,875 15,875 6,35
SNMG 150612-PM RT225+ 1,2 15,875 15,875 6,35
SNMG 150616-PM RT225+ 1,6 15,875 15,875 6,35
SNMG 190608-PM RT225+ 0,8 19,05 19,05 6,35
SNMG 190612-PM RT225+ 1,2 19,05 19,05 6,35
SNMG 190616-PM RT225+ 1,6 19,05 19,05 6,35
SNMG 190624-PM RT225+ 2,4 19,05 19,05 6,35

Indexable insert - SNMG...-MR RT255M

Price ab €4.90
Availability: 2147483627 In Stock
Shape SNMG
Processing Medium/Roughing
Workpiece Material Stainless Steel
Grade RT255M: PVD coated M20-M30 carbide.
First choice for stainless steel
Packaging unit 10 Pc.

  r L I.C S d
SNMG 120404-MR RT255M 0,4 12,7 12,7 4,76 5,16
SNMG 120408-MR RT255M 0,8 12,7 12,7 4,76 5,16
SNMG 120412-MR RT255M 1,2 12,7 12,7 4,76 5,16

Indexable insert - SNMG...-FE RT305

Price ab €4.60
Availability: 2147483557 In Stock

Shape SNMG
Processing Finish
Workpiece Material Stainless Steel
Grade RT305: PVD grade M20-M30 for stainless steel
with the most modern coating
Packaging unit 10 Pc.

  r L I.C S d
SNMG 120404-FE RT305 0,4 12,7 12,7 4,76 5,16
SNMG 120408-FE RT305 0,8 12,7 12,7 4,76 5,16
SNMG 120412-FE RT305 1,2 12,7 12,7 4,76 5,16

Indexable insert - SNMG...-KC RT150K

Price ab €4.90
Availability: 214748364 In Stock

Shape SNMG
Processing Medium
Workpiece Material Cast Iron
Grade RT150K: CVD-coated K10-K20 carbide for cast machining
Packaging unit 10 Pc.

  r L I.C S d
SNMG 120408-KC RT150K 0,8 12,7 12,7 4,76 5,16
SNMG 120412-KC RT150K 1,2 12,7 12,7 4,76 5,16

Indexable insert - WNMG...-PM RT250+

Price ab €3.90
Availability: 2147483427 In Stock

Shape WNMG
Processing Medium
Workpiece Material Steel
Grade RT250+: CVD coated 2 color coated P20-P30 carbide for steel
RT225+: CVD coated 2-color P20 carbide the latest generation for general steel processing
Packaging unit 10 Pc.

  r L I.C S d
WNMG 060404-PM RT225+ 0,4 6,5 9,525 4,76 3,81
WNMG 060408-PM RT225+ 0,8 6,5 9,525 4,76 3,81
WNMG 080404-PM RT250+ 0,4 8,7 12,7 4,76 5,16
WNMG 080408-PM RT250+ 0,8 8,7 12,7 4,76 5,16
WNMG 080412-PM RT250+ 1,2 8,7 12,7 4,76 5,16

Indexable insert - WNMG ... -MA RT250M

Price ab €4.40
Availability: 2147483547 In Stock

Shape WNMG
Processing Medium
Workpiece Material Stainless Steel
Grade RT250M: PVD coated M20-M30 carbide.
Packaging unit 10 Pc.

  r L I.C S d
WNMG 080404-MA RT250M 0,4 8,7 12,7 4,76 5,16
WNMG 080408-MA RT250M 0,8 8,7 12,7 4,76 5,16

Indexable insert - WNMG...-MR RT255M

Price ab €4.40
Availability: 214748364 In Stock

Shape WNMG
Processing Medium/Roughing
Workpiece Material Stainless Steel
Grade RT255M: PVD coated M20-M30 carbide.
First choice for stainless steel
Packaging unit 10 Pc.

r L I.C S d
WNMG 060404-MR RT255M 0,4 6,5 9,525 4,76 3,81
WNMG 060408-MR RT255M 0,8 6,5 9,525 4,76 3,81
WNMG 060412-MR RT255M 1,2 6,5 9,525 4,76 3,81
WNMG 080404-MR RT255M 0,4 8,7 12,7 4,76 5,16
WNMG 080408-MR RT255M 0,8 8,7 12,7 4,76 5,16
WNMG 080412-MR RT255M 1,2 8,7 12,7 4,76 5,16

Indexable insert - WNMG...-FE RT305

Price ab €4.60
Availability: 2147483497 In Stock

Shape WNMG
Processing Finish
Workpiece Material Stainless Steel
Grade RT305: PVD grade M20-M30 for stainless steel
with the most modern coating
Packaging unit 10 Pc.

  r L I.C S d
WNMG 060404-FE RT305 0,4 6,5 9,525 4,76 3,81
WNMG 060408-FE RT305 0,8 6,5 9,525 4,76 3,81
WNMG 080404-FE RT305 0,4 8,7 12,7 4,76 5,16
WNMG 080408-FE RT305 0,8 8,7 12,7 4,76 5,16

Indexable insert - WNMG...-KC RT150K

Price ab €4.70
Availability: 2147483637 In Stock

Shape WNMG
Processing Medium
Workpiece Material Cast Iron
Grade RT150K: CVD-coated K10-K20 carbide for cast machining
Packaging unit 10 Pc.

  r L I.C S d
WNMG 080404-KC RT150K 0,4 8,7 12,7 4,76 5,16
WNMG 080408-KC RT150K 0,8 8,7 12,7 4,76 5,16
WNMG 080412-KC RT150K 1,2 8,7 12,7 4,76 5,16
Indexable insert - DNMG...-MR RT255M
  • New

Indexable insert - DNMG...-MR RT255M

Price ab €4.90
Availability: 2147483487 In Stock

Shape DNMG
Processing Medium/Roughing
Workpiece Material Stainless Steel
Grade RT255M: PVD coated M20-M30 carbide. First choice for stainless steel
Packaging unit 10 Pc.

r L I.C. S
DNMG 110404-MR RT255M 0,4 11 9,525 4,76
DNMG 110408-MR RT255M 0,8 11 9,525 4,76
DNMG 150604-MR RT255M 0,4 15 12,7 6,35
DNMG 150608-MR RT255M 0,8 15 12,7 6,35
DNMG 150612-MR RT255M 1,2 15 12,7 6,35