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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: SN..
  • Inserts: TN..
  • 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 - 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 - TNMG...-PM RT250+

Price ab €3.95
Availability: 2147483607 In Stock

Shape TNMG
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
TNMG 160404-PM RT250+ 0,4 16,5 9,525 4,76 3,81
TNMG 160408-PM RT250+ 0,8 16,5 9,525 4,76 3,81
TNMG 160412-PM RT250+ 1,2 16,5 9,525 4,76 3,81

Indexable insert - TNMG ...-FE RT305

Price ab €3.85
Availability: 2147483437 In Stock

Shape TNMG
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
TNMG 160404-FE RT305 0,4 16,5 9,525 4,76 3,81
TNMG 160408-FE RT305 0,8 16,5 9,525 4,76 3,81
TNMG 160412-FE RT305 1,2 16,5 9,525 4,76 3,81

Indexable insert - TNMG...-ME RT305

Price ab €3.85
Availability: 2147483597 In Stock

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

r L I.C S d
TNMG 160408-ME RT305 0,8 16,5 9,525 4,76 3,81
TNMG 160412-ME RT305 1,2 16,5 9,525 4,76 3,81

Indexable insert - TNMG...-KC RT150K

Price ab €3.85
Availability: 214748364 In Stock

Shape TNMG
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
TNMG 160404-KC RT150K 0,4 16,5 9,525 4,76 3,81
TNMG 160408-KC RT150K 0,8 16,5 9,525 4,76 3,81
TNMG 160412-KC RT150K 1,2 16,5 9,525 4,76 3,81

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