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Top Notch™ Grooving

If your applications require you to work with many different workpiece materials and feed rates, you must take steps to control vibrations and chipping. After all, too much chatter leaves you with inconsistent and rough results. To help you improve machining processes, Kennametal has developed Top Notch grooving tools and tool holders. Kennametal Top Notch tools include boring bars, CBN inserts, heads, and cartridges.

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Workpiece Material
Workpiece Material
  • P Steel (1461)
    • P0
      Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS (1461)
    • P1
      Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS (1461)
    • P2
      Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS (1461)
    • P3
      Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS (1461)
    • P4
      Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS (1461)
    • P5
      Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS (1461)
    • P6
      High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS (1461)
  • M Stainless Steel (1262)
    • M1
      Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS (1262)
    • M2
      High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS (1262)
    • M3
      Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS (1262)
  • K Cast Iron (1239)
    • K1
      Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS (1239)
    • K2
      Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS (1228)
    • K3
      High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS (1228)
  • N Non-Ferrous Materials (1195)
    • N1
      Wrought Aluminum (1187)
    • N2
      Low-Silicon Aluminum Alloys and Magnesium Alloys Si <12.2% (1033)
    • N3
      High-Silicon Aluminum Alloys Si >12.2% (203)
    • N4
      Copper, Brass, Zinc-based on machinability index range of 70-100 (1195)
    • N5
      Nylon, Plastics, Rubbers, Phenolics, Resins, Fiberglass (1041)
    • N6
      Carbon, Graphite Composites, CFRP (1033)
    • N7
      MMC's (195)
  • S High-Temp Alloys (1416)
    • S1
      Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS (1416)
    • S2
      Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS (1416)
    • S3
      Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS (1416)
    • S4
      Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS (1405)
  • H Hardened Materials (577)
    • H1
      Hardened Materials 44-48 HRC (577)
    • H2
      Hardened Materials 48-55 HRC (390)
    • H3
      Hardened Materials 56-60 HRC (127)
    • H4
      Hardened Materials >60 HRC (127)
Applications
Applications
  • Boring Boring (1087)
  • Face Grooving Face Grooving (1808)
  • Grooving Grooving (1744)
  • ID Facing ID Facing (7)
  • ID Grooving ID Grooving (1570)
  • ID Thread Turning ID Thread Turning (69)
  • OD Thread Turning OD Thread Turning (127)
  • Plunge Turning Plunge Turning (1508)
  • Profiling Profiling (84)
  • Threading Threading (130)
  • Turning Turning (1112)
Type of Thread
Type of Thread
  • 60 (187)
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  • BUTTRESS (182)
  • M (114)
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  • UN (182)
  • UNJ (78)
Cutting Condition
Cutting Condition
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  • Lightly Interrupted Cut (1263)
  • Smooth Cut (1412)
  • Varying Depth of Cut (1399)
Tool Cutting Edge Angle
Tool Cutting Edge Angle
  • 45.0 (12)
  • 90.0 (186)
Tool Cutting Edge Angle Min to Tool Cutting Edge Angle Max
Connection Style
Connection Style
  • Bolt-On Head (6)
  • Boring Bar Shank (63)
  • Toolholder (90)
Cutting Edges Per Insert
Cutting Edges Per Insert
  • 1.0 (407)
  • 2.0 (1602)
Cutting Edges Per Insert Min to Cutting Edges Per Insert Max
Internal Coolant Capability
Internal Coolant Capability
Over All Length [L]
Over All Length [L]
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Over All Length [L]
Over All Length [L]
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Over All Length [L] Min to Over All Length [L] Max
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Corner Radius
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Corner Radius
Corner Radius
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Corner Chamfer
Corner Chamfer
  • 0.0 mm (1635)
Corner Chamfer Min to Corner Chamfer Max
Corner Chamfer
Corner Chamfer
  • 0.0 in (1635)
Corner Chamfer Min to Corner Chamfer Max
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Minimum Depth of Cut
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Grade Of Cutting Tool
Grade Of Cutting Tool
  • K1 (5)
  • K2885 (146)
  • K313 (231)
  • K420 (216)
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  • K68 (303)
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Hand Of Tool
Hand Of Tool
  • L (67)
  • R (92)
Wiper Insert
Wiper Insert
  • N (1829)
F Dimension
F Dimension
  • 6.551 mm (2)
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F Dimension Min to F Dimension Max
F Dimension
F Dimension
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Minimum Axial Groove Diameter
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  • 146.05 mm (3)
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  • 222.3 mm (58)
  • 333.0 mm (4)
Minimum Axial Groove Diameter Min to Minimum Axial Groove Diameter Max
Minimum Axial Groove Diameter
Minimum Axial Groove Diameter
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Maximum Axial Groove Diameter
Maximum Axial Groove Diameter
  • 393.661 in (1824)
Maximum Axial Groove Diameter Min to Maximum Axial Groove Diameter Max
Maximum Axial Groove Diameter
Maximum Axial Groove Diameter
  • 9999.0 mm (1824)
Maximum Axial Groove Diameter Min to Maximum Axial Groove Diameter Max
Countersunk Angle
Countersunk Angle
  • 20.0 (3)
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Countersunk Angle Min to Countersunk Angle Max
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Cutting Direction
  • E (87)
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Rake Angle Style
Rake Angle Style
  • NEUTRAL (ZERO) (159)
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Maximum Bore Depth
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