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Kennametal Top Notch Grooving Inserts

Top Notchâ„¢ Grooving Tools and Beyondâ„¢ Inserts for Your Shallow Groove and Turn Operations

Primary Application

Top Notch Grooving is the proven solution for high productivity. The Top Notch system provides consistent tool performance, accurate indexing, and superior clamping to provide excellent surface finishing and superior tool life.

Features and Benefits

  • The Beyond PVD coated grades are designed to cut a variety of workpiece materials.
  • Rigid clamping securely locks insert in place through the toughest cuts.
  • Versatile design enables one system to handle O.D. and I.D. grooving, face grooving, back turning, undercutting, and even threading operations.
  • Chip control inserts provide excellent chip evacuation in grooving, and offer better chip control in multidirectional turning.

Click through to the products to see videos of them in action, and also find their related matching tools.

Items 1 to 250 of 939 total

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  1. NR-R

    Full radius grooving. Turning profiling. Neutral rake angle.

    Product Code Seat W RC T  
    NR4M250R KC9320 » 4 5.00 2.50 6.35
    NR4M225R KC9320 » 4 4.50 2.25 6.35
    NR4M200R KC9320 » 4 4.00 2.00 6.35
    NR4125R KCU25 » 4 6.35 3.18 6.35
    NR4125R KCU10 » 4 6.35 3.18 6.35
    NR4125R KC5010 » 4 6.35 3.18 6.35
    NR4125R K313 » 4 6.35 3.18 6.35
    NR4094R K313 » 4 4.78 2.39 6.35
    NR3M225R KC9320 » 3 4.50 2.25 3.81
    NR3M225R KC5025 » 3 4.50 2.25 3.81
    NR3M200R KC9320 » 3 4.00 2.00 3.81
    NR3M200R KC5025 » 3 4.00 2.00 3.81
    NR3M175R KC9320 » 3 3.50 1.75 3.81
    NR3M150R KC9320 » 3 3.00 1.50 3.81
    NR3M150R KC5025 » 3 3.00 1.50 3.81
    NR3M125R KC9320 » 3 2.50 1.25 3.81
    NR3M125R KC9110 » 3 2.50 1.25 3.81
    NR3M100R KC9320 » 3 2.00 1.00 2.39
    NR3M100R KC5025 » 3 2.00 1.00 2.39
    NR3094R KCU25 » 3 4.78 2.39 3.81
    NR3094R KCU10 » 3 4.78 2.39 3.81
    NR3094R KC5025 » 3 4.78 2.39 3.81
    NR3094R KC5010 » 3 4.78 2.39 3.81
    NR3094R K313 » 3 4.78 2.39 3.81
    NR3078R K313 » 3 3.96 1.98 3.81
    NR3062R KCU25 » 3 3.18 1.59 3.81
    NR3062R KCU10 » 3 3.18 1.59 3.81
    NR3062R KC5025 » 3 3.18 1.59 3.81
    NR3062R KC5010 » 3 3.18 1.59 3.81
    NR3062R K313 » 3 3.18 1.59 3.81
    NR3047R KCU25 » 3 2.39 1.19 3.81
    NR3047R KCU10 » 3 2.39 1.19 3.81
    NR3047R KC5010 » 3 2.39 1.19 3.81
    NR3047R K313 » 3 2.39 1.19 3.81
    NR3031R KCU25 » 3 1.58 0.79 2.39
    NR3031R KCU10 » 3 1.58 0.79 2.39
    NR3031R KC5025 » 3 1.58 0.79 2.39
    NR3031R KC5010 » 3 1.58 0.79 2.39
    NR3031R K313 » 3 1.58 0.79 2.39
    NR2M175R KC9320 » 2 3.50 1.75 2.79
    NR2M175R KC5025 » 2 3.50 1.75 2.79
    NR2M150R KC9320 » 2 3.00 1.50 2.79
    NR2M150R KC5025 » 2 3.00 1.50 2.79
    NR2M125R KC9320 » 2 2.50 1.25 2.79
    NR2M125R KC5025 » 2 2.50 1.25 2.79
    NR2M100R KCU10 » 2 2.00 1.00 2.79
    NR2M100R KC9320 » 2 2.00 1.00 2.79
    NR2M100R KC5025 » 2 2.00 1.00 2.79
    NR2M100R KC5010 » 2 2.00 1.00 2.79
    NR2M075R KCU10 » 2 1.50 0.75 2.79
    NR2M075R KC9320 » 2 1.50 0.75 2.79
    NR2M075R KC5010 » 2 1.50 0.75 2.79
    NR2M050R KCU25 » 2 1.00 0.50 1.27
    NR2M050R KCU10 » 2 1.00 0.50 1.27
    NR2M050R KC9320 » 2 1.00 0.50 1.27
    NR2M050R KC5025 » 2 1.00 0.50 1.27
    NR2M050R KC5010 » 2 1.00 0.50 1.27
    NR2062R KCU25 » 2 3.18 1.59 2.79
    NR2062R KCU10 » 2 3.18 1.59 2.79
    NR2062R KC5010 » 2 3.18 1.59 2.79
    NR2047R KCU25 » 2 2.39 1.19 2.79
    NR2031R KCU25 » 2 1.58 0.79 2.79
    NR2031R KCU10 » 2 1.58 0.79 2.79
    NR2031R KC5025 » 2 1.58 0.79 2.79
    NR2031R KC5010 » 2 1.58 0.79 2.79
    NR-R
  2. NR-L

    Full radius grooving. Turning profiling. Neutral rake angle.

    Product Code Seat W RC T  
    NR4M250L KC9320 » 4 5.00 2.50 6.35
    NR4M225L KC9320 » 4 4.50 2.25 6.35
    NR4M200L KC9320 » 4 4.00 2.00 6.35
    NR4125L KCU25 » 4 6.35 3.18 6.35
    NR4125L KCU10 » 4 6.35 3.18 6.35
    NR4125L KC5010 » 4 6.35 3.18 6.35
    NR3M225L KC9320 » 3 4.50 2.25 3.81
    NR3M225L KC5025 » 3 4.50 2.25 3.81
    NR3M200L KC9320 » 3 4.00 2.00 3.81
    NR3M200L KC5025 » 3 4.00 2.00 3.81
    NR3M175L KC9320 » 3 3.50 1.75 3.81
    NR3M150L KCU10 » 3 3.00 1.50 3.81
    NR3M150L KC9320 » 3 3.00 1.50 3.81
    NR3M150L KC5025 » 3 3.00 1.50 3.81
    NR3M150L KC5010 » 3 3.00 1.50 3.81
    NR3M125L KC9320 » 3 2.50 1.25 3.81
    NR3M100L KC9320 » 3 2.00 1.00 2.39
    NR3M100L KC5025 » 3 2.00 1.00 2.39
    NR3094L KCU25 » 3 4.78 2.39 3.81
    NR3094L KCU10 » 3 4.78 2.39 3.81
    NR3094L KC5025 » 3 4.78 2.39 3.81
    NR3094L KC5010 » 3 4.78 2.39 3.81
    NR3094L K313 » 3 4.78 2.39 3.81
    NR3062L KCU25 » 3 3.18 1.59 3.81
    NR3062L KCU10 » 3 3.18 1.59 3.81
    NR3062L KC5025 » 3 3.18 1.59 3.81
    NR3062L KC5010 » 3 3.18 1.59 3.81
    NR3062L K313 » 3 3.18 1.59 3.81
    NR3047L KCU25 » 3 2.39 1.19 3.81
    NR3047L KCU10 » 3 2.39 1.19 3.81
    NR3047L KC5010 » 3 2.39 1.19 3.81
    NR3047L K313 » 3 2.39 1.19 3.81
    NR3031L KCU25 » 3 1.58 0.79 2.39
    NR3031L KCU10 » 3 1.58 0.79 2.39
    NR3031L KC5025 » 3 1.58 0.79 2.39
    NR3031L KC5010 » 3 1.58 0.79 2.39
    NR3031L K313 » 3 1.58 0.79 2.39
    NR2M175L KC9320 » 2 3.50 1.75 2.79
    NR2M175L KC5010 » 2 3.50 1.75 2.79
    NR2M150L KC9320 » 2 3.00 1.50 2.79
    NR2M150L KC5025 » 2 3.00 1.50 2.79
    NR2M125L KC9320 » 2 2.50 1.25 2.79
    NR2M125L KC5025 » 2 2.50 1.25 2.79
    NR2M100L KC9320 » 2 2.00 1.00 2.79
    NR2M100L KC5025 » 2 2.00 1.00 2.79
    NR2M050L KCU25 » 2 1.00 0.50 1.27
    NR2M050L KCU10 » 2 1.00 0.50 1.27
    NR2M050L KC9320 » 2 1.00 0.50 1.27
    NR2M050L KC5010 » 2 1.00 0.50 1.27
    NR2062L KCU25 » 2 3.18 1.59 2.79
    NR2062L KCU10 » 2 3.18 1.59 2.79
    NR2062L KC5010 » 2 3.18 1.59 2.79
    NR2047L KCU25 » 2 2.39 1.19 2.79
    NR2031L KCU25 » 2 1.58 0.79 2.79
    NR2031L KCU10 » 2 1.58 0.79 2.79
    NR2031L KC5025 » 2 1.58 0.79 2.79
    NR2031L KC5010 » 2 1.58 0.79 2.79
    NR-L
  3. NR-RK

    Chip control geometry. Full radius grooving turning profiling. 10°/Positive rake angle.

    Product Code Seat W RC T  
    NR4125RK KCU25 » 4 6.35 3.18 6.35
    NR4125RK KCU10 » 4 6.35 3.18 6.35
    NR4125RK KC5025 » 4 6.35 3.18 6.35
    NR4125RK KC5010 » 4 6.35 3.18 6.35
    NR4094RK KCU25 » 4 4.78 2.39 6.35
    NR4094RK KCU10 » 4 4.78 2.39 6.35
    NR4094RK KC9110 » 4 4.78 2.39 6.35
    NR4094RK KC5010 » 4 4.78 2.39 6.35
    NR4062RK KCU25 » 4 3.18 1.59 3.81
    NR4062RK KCU10 » 4 3.18 1.59 3.81
    NR4062RK KC9110 » 4 3.18 1.59 3.81
    NR4062RK KC5010 » 4 3.18 1.59 3.81
    NR3078RK KCU25 » 3 3.96 1.98 3.81
    NR3078RK KCU10 » 3 3.96 1.98 3.81
    NR3078RK KC5010 » 3 3.96 1.98 3.81
    NR3062RK KCU25 » 3 3.18 1.59 3.81
    NR3062RK KCU10 » 3 3.18 1.59 3.81
    NR3062RK KC5025 » 3 3.18 1.59 3.81
    NR3062RK KC5010 » 3 3.18 1.59 3.81
    NR3047RK KCU25 » 3 2.39 1.19 3.81
    NR3047RK KCU10 » 3 2.39 1.19 3.81
    NR3047RK KC5025 » 3 2.39 1.19 3.81
    NR3047RK KC5010 » 3 2.39 1.19 3.81
    NR3031RK KCU25 » 3 1.58 0.79 2.39
    NR3031RK KCU10 » 3 1.58 0.79 2.39
    NR3031RK KC5025 » 3 1.58 0.79 2.39
    NR3031RK KC5010 » 3 1.58 0.79 2.39
    NR-RK
  4. NR-LK

    Chip control geometry. Full radius grooving turning profiling. 10°/Positive rake angle.

    Product Code Seat W RC T  
    NR4062LK KC5010 » 4 3.18 1.59 3.81
    NR3078LK KCU25 » 3 3.96 1.98 3.81
    NR3078LK KCU10 » 3 3.96 1.98 3.81
    NR3078LK KC5025 » 3 3.96 1.98 3.81
    NR3078LK KC5010 » 3 3.96 1.98 3.81
    NR3062LK KCU25 » 3 3.18 1.59 3.81
    NR3062LK KCU10 » 3 3.18 1.59 3.81
    NR3062LK KC5025 » 3 3.18 1.59 3.81
    NR3062LK KC5010 » 3 3.18 1.59 3.81
    NR3047LK KCU25 » 3 2.39 1.19 3.81
    NR3047LK KCU10 » 3 2.39 1.19 3.81
    NR3047LK KC5025 » 3 2.39 1.19 3.81
    NR3047LK KC5010 » 3 2.39 1.19 3.81
    NR3031LK KCU25 » 3 1.58 0.79 2.39
    NR3031LK KCU10 » 3 1.58 0.79 2.39
    NR3031LK KC5025 » 3 1.58 0.79 2.39
    NR3031LK KC5010 » 3 1.58 0.79 2.39
    NR-LK
  5. NGP-R

    General-purpose grooving. O-ring grooving. Circlip grooving. 5°/Positive rake angle.

    Product Code Seat W RR T  
    NGP4250R KCU10 » 4 6.35 0.57 6.35
    NGP4250R KC5010 » 4 6.35 0.57 6.35
    NGP4189R KCU10 » 4 4.80 0.57 6.35
    NGP4189R KC5410 » 4 4.80 0.57 6.35
    NGP4189R KC5010 » 4 4.80 0.57 6.35
    NGP3189R KC5010 » 3 4.80 0.57 3.81
    NGP3156R KC5010 » 3 3.96 0.19 3.81
    NGP3125R KD1425 » 3 3.18 0.19 3.81
    NGP3125R KCU10 » 3 3.18 0.19 3.81
    NGP3125R KC5410 » 3 3.18 0.19 3.81
    NGP3125R KC5010 » 3 3.18 0.19 3.81
    NGP3088R KD1425 » 3 2.24 0.19 2.39
    NGP3088R KCU10 » 3 2.24 0.19 2.39
    NGP3088R KC5410 » 3 2.24 0.19 2.39
    NGP3088R KC5010 » 3 2.24 0.19 2.39
    NGP2M150R K313 » 2 1.50 0.19 2.79
    NGP2125R KCU10 » 2 3.18 0.19 2.79
    NGP2125R KC5410 » 2 3.18 0.19 2.79
    NGP2125R KC5010 » 2 3.18 0.19 2.79
    NGP2062R KCU10 » 2 1.58 0.19 2.79
    NGP2062R KC5410 » 2 1.58 0.19 2.79
    NGP2062R KC5010 » 2 1.58 0.19 2.79
    NGP2031R KCU10 » 2 0.79 0.09 1.27
    NGP2031R KC5410 » 2 0.79 0.09 1.27
    NGP2031R KC5010 » 2 0.79 0.09 1.27
    NGP-R
  6. NGP-L

    General-purpose grooving. O-ring grooving. Circlip grooving. 5°/Positive rake angle.

    Product Code Seat W RR T  
    NGP4250L KCU10 » 4 6.35 0.57 6.35
    NGP4250L KC5010 » 4 6.35 0.57 6.35
    NGP4189L KCU10 » 4 4.80 0.57 6.35
    NGP4189L KC5010 » 4 4.80 0.57 6.35
    NGP3189L KC5010 » 3 4.80 0.57 3.81
    NGP3156L KC5010 » 3 3.96 0.19 3.81
    NGP3125L KD1425 » 3 3.18 0.19 3.81
    NGP3125L KC5410 » 3 3.18 0.19 3.81
    NGP3125L KC5010 » 3 3.18 0.19 3.81
    NGP3088L KD1425 » 3 2.24 0.19 2.39
    NGP3088L KC5010 » 3 2.24 0.19 2.39
    NGP2M200L K313 » 2 2.00 0.19 2.79
    NGP2M150L K313 » 2 1.50 0.19 2.79
    NGP2125L KCU10 » 2 3.18 0.19 2.79
    NGP2125L KC5410 » 2 3.18 0.19 2.79
    NGP2125L KC5010 » 2 3.18 0.19 2.79
    NGP2062L KC5410 » 2 1.58 0.19 2.79
    NGP2062L KC5010 » 2 1.58 0.19 2.79
    NGP2031L KCU10 » 2 0.79 0.09 1.27
    NGP2031L KC5410 » 2 0.79 0.09 1.27
    NGP2031L KC5010 » 2 0.79 0.09 1.27
    NGP-L

    NOTE Right hand inserts shown, left hand is mirror image.

  7. NGD-RK

    Chip control geometry. Deep grooving. Light turning. 10°/Positive rake angle.

    Product Code Seat W RR T  
    NGD4M550RK KC5025 » 4 5.50 0.57 12.70
    NGD4M550RK KC5010 » 4 5.50 0.57 12.70
    NGD4M500RK KC5025 » 4 5.00 0.57 12.70
    NGD4M500RK KC5010 » 4 5.00 0.57 12.70
    NGD4M450RK KC5025 » 4 4.50 0.57 12.70
    NGD4M450RK KC5010 » 4 4.50 0.57 12.70
    NGD4M400RK KC5025 » 4 4.00 0.57 9.53
    NGD4M400RK KC5010 » 4 4.00 0.57 9.53
    NGD4250RK KCU25 » 4 6.35 0.57 12.70
    NGD4250RK KCU10 » 4 6.35 0.57 12.70
    NGD4250RK KC5025 » 4 6.35 0.57 12.70
    NGD4250RK KC5010 » 4 6.35 0.57 12.70
    NGD4250RK K313 » 4 6.35 0.57 12.70
    NGD4189RK KCU25 » 4 4.80 0.57 9.53
    NGD4189RK KCU10 » 4 4.80 0.57 9.53
    NGD4189RK KC5025 » 4 4.80 0.57 9.53
    NGD4189RK KC5010 » 4 4.80 0.57 9.53
    NGD4189RK K313 » 4 4.80 0.57 9.53
    NGD-RK
  8. NGD-LK

    Chip control geometry. Deep grooving. Light turning. 10°/Positive rake angle.

    Product Code Seat W RR T  
    NGD4M550LK KC5025 » 4 5.50 0.57 12.70
    NGD4M550LK KC5010 » 4 5.50 0.57 12.70
    NGD4M500LK KC5025 » 4 5.00 0.57 12.70
    NGD4M500LK KC5010 » 4 5.00 0.57 12.70
    NGD4M450LK KC5025 » 4 4.50 0.57 12.70
    NGD4M450LK KC5010 » 4 4.50 0.57 12.70
    NGD4M400LK KC5025 » 4 4.00 0.57 9.53
    NGD4M400LK KC5010 » 4 4.00 0.57 9.53
    NGD4250LK KCU25 » 4 6.35 0.57 12.70
    NGD4250LK KCU10 » 4 6.35 0.57 12.70
    NGD4250LK KC5025 » 4 6.35 0.57 12.70
    NGD4189LK KCU25 » 4 4.80 0.57 9.53
    NGD4189LK KCU10 » 4 4.80 0.57 9.53
    NGD4189LK KC5025 » 4 4.80 0.57 9.53
    NGD-LK

    NOTE Right hand inserts shown, left hand is mirror image.

  9. NGD-R

    Deep grooving. Neutral rake angle.

    Product Code Seat W RR T  
    NGD4250R KCU10 » 4 6.35 0.57 12.70
    NGD4250R KC5010 » 4 6.35 0.57 12.70
    NGD4250R K313 » 4 6.35 0.57 12.70
    NGD-R
  10. NGD-L

    Deep grooving. Neutral rake angle.

    Product Code Seat W RR T  
    NGD4250L KCU10 » 4 6.35 0.57 12.70
    NGD4250L KC5010 » 4 6.35 0.57 12.70
    NGD4250L K313 » 4 6.35 0.57 12.70
    NGD-L

    NOTE Right hand inserts shown, left hand is mirror image.

Items 1 to 250 of 939 total

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