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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: NF-Metals
  • Materials: Plastic
  • Materials: Steel
  • Inserts: CN..
  • Inserts: KNUX
Indexable insert - CNMG...-W RT315G
  • New

Indexable insert - CNMG...-W RT315G

Price ab €4.60
Availability: 2147483377 In Stock

Shape CNMG
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
CNMG 120404-W RT315G 0,4 12,9 12,7 4,76
CNMG 120408-W RT315G 0,8 12,9 12,7 4,76
CNMG 120412-W RT315G 1,2 12,9 12,7 4,76

Indexable insert - CNMG...-FP RT150+/250+

Price ab €3.90
Availability: 2147483467 In Stock

Shape CNMG
Processing Finish
Workpiece Material Steel
Grade RT150+: CVD-coated 2-color coated P10-P20 carbide for steel
RT250+:
CVD coated 2 color P20-P30 carbide for steel
Packaging unit 10 Pc.

  r L I.C. S
CNMG 120404-FP RT150+ 0,4 12,9 12,7 4,76
CNMG 120408-FP RT150+ 0,8 12,9 12,7 4,76
CNMG 120408-FP RT250+ 0,8 12,9 12,7 4,76

Indexable insert - CNMG...-PM RT250+

Price ab €3.90
Availability: 2147481247 In Stock

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

r L I.C. S
CNMG 120404-PM RT250+ 0,4 12,9 12,7 4,76
CNMG 120408-PM RT250+ 0,8 12,9 12,7 4,76
CNMG 120412-PM RT250+ 1,2 12,9 12,7 4,76

Indexable insert - CNMG...-PR RT215+/225+

Price ab €4.40
Availability: 2147483597 In Stock

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

r L I.C. S
CNMG 120408-PR RT215+/225+ 0,8 12,9 12,7 4,76
CNMG 120412-PR RT215+/225+ 1,2 12,9 12,7 4,76
CNMG 120416-PR RT215+/225+
1,6 12,9 12,7 4,76
CNMG 160608-PR RT215+/225+
0,8 16,1 15,875 6,35
CNMG 160612-PR RT215+/225+
1,2 16,1 15,875 6,35
CNMG 160616-PR RT215+/225+
1,6 16,1 15,875 6,35
CNMG 190612-PR RT215+/225+
1,2 19,3 19,05 6,35
CNMG 190616-PR RT215+/225+
1,6 19,3 19,05 6,35
CNMG 190624-PR RT215+/225+
2,4 19,3 19,05 6,35

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

Price ab €4.40
Availability: 2147483637 In Stock

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

  r L I.C. S
CNMG 120404-PM RT215+ 0,4 12,9 12,7 4,76
CNMG 120408-PM RT215+ 0,8 12,9 12,7 4,76
CNMG 120412-PM RT215+ 1,2 12,9 12,7 4,76
CNMG 120416-PM RT215+ 1,6 12,9 12,7 4,76
CNMG 160608-PM RT215+ 0,8 16,1 15,875 6,35
CNMG 160612-PM RT215+ 1,2 16,1 15,875 6,35
CNMG 160616-PM RT215+ 1,6 16,1 15,875 6,35
CNMG 190608-PM RT215+ 0,8 19,3 19,05 6,35
CNMG 190612-PM RT215+ 1,2 19,3 19,05 6,35
CNMG 190616-PM RT215+ 1,6 19,3 19,05 6,35
CNMG 120404-PM RT225+ 0,4 12,9 12,7 4,76
CNMG 120408-PM RT225+ 0,8 12,9 12,7 4,76
CNMG 120412-PM RT225+ 1,2 12,9 12,7 4,76
CNMG 120416-PM RT225+ 1,6 12,9 12,7 4,76
CNMG 160608-PM RT225+ 0,8 16,1 15,875 6,35
CNMG 160612-PM RT225+ 1,2 16,1 15,875 6,35
CNMG 160616-PM RT225+ 1,6 16,1 15,875 6,35
CNMG 190608-PM RT225+ 0,8 19,3 19,05 6,35
CNMG 190612-PM RT225+ 1,2 19,3 19,05 6,35
CNMG 190616-PM RT225+ 1,6 19,3 19,05 6,35

Indexable insert - CNMG...-SF RTC+

Price ab €3.70
Availability: 214748364 In Stock

Shape CNMG
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
CNMG 090304-SF RTC+ 0,4 9,7 9,525 3,18
CNMG 120404-SF RTC+ 0,4 12,9 12,7 4,76
CNMG 120408-SF RTC+ 0,8 12,9 12,7 4,76

Indexable insert - CNMG...-KC RT150K

Price ab €4.70
Availability: 2147483557 In Stock

Shape CNMG
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
CNMG 120404-KC RT150K 0,4 12,9 12,7 4,76 5,16
CNMG 120408-KC RT150K 0,8 12,9 12,7 4,76 5,16
CNMG 120412-KC RT150K 1,2 12,9 12,7 4,76 5,16

Indexable insert - CNMG...-ALP RT100

Price ab €4.20
Availability: 2147483197 In Stock

Shape CNMG
Workpiece Material Aluminum, Plastics & NF-Metals
Grade RT100: Uncoated K10-K15 carbide for Aluminum and plastics
Packaging unit 10 Pc.

 

  L I.C S d r
CNMG 120404-ALP RT100 12,9 12,7 4,76 5,16 0,4
CNMG 120408-ALP RT100 12,9 12,7 4,76 5,16 0,8

Indexable insert - CNMM...-XR RT225+

Price ab €4.40
Availability: 2147483487 In Stock

Shape CNMM
Processing Roughing
Workpiece Material Steel
Grade RT225+: CVD coated P20 carbide of
the latest generation for general steel processing
Packaging unit 10 Pc.

r L I.C. S
CNMM 120408-XR RT225+ 0,8 12,9 12,7 4,76
CNMM 120412-XR RT225+ 1,2 12,9 12,7 4,76
CNMM 120416-XR RT225+ 1,6 12,9 12,7 4,76
CNMM 160612-XR RT225+ 1,2 16,1 15,875 6,35
CNMM 160616-XR RT225+ 1,6 16,1 15,875 6,35
CNMM 160624-XR RT225+ 2,4 16,1 15,875 6,35
CNMM 190612-XR RT225+ 1,2 19,3 19,05 6,35
CNMM 190616-XR RT225+ 1,6 19,3 19,05 6,35
CNMM 190624-XR RT225+ 2,4 19,3 19,05 6,35

Indexable insert - KNUX ... R11 RT250

Price ab €3.60
Availability: 9999980 In Stock
Shape KNUX
Processing Medium and Roughing
Workpiece Material Steel
Grade RT250: CVD-coated P25-TIN hard metal for general steel processing
Packaging unit 10 Pc.

r La brn L I.W S
KNUX 160405 L11 RT250 0,5 16 2,2 16,15 9,525 4,76
KNUX 160405 R11 RT250 05 16 2,2 16,15 9,525 4,76
KNUX 160410 L11 RT250 1 16 2,2 16,15 9,525 4,76
KNUX 160410 R11 RT250 1 16 2,2 16,15 9,525 4,76