Top Cut 4™

Top Cut 4™ is a versatile indexable drill  with four true cutting edges on each insert. This drill is capable of supporting a variety of applications including through and cross-hole, inclined entry and exit, 45 degree corner,  half cylindrical, concave, blind, and chain drilling. 

Three Chip Breakers in Four Grades

   

Product Features:

  • Standard diameter range covering 12-68mm
  • 4 real cutting edges per insert
  • 4 grades to achieve higher tool life at accelerated speeds: WU25CH, WU40PH, WPK10CH, WN10PH
  • X-offset design to adjust diameter size on turning machines and optimize tolerances on machining centers
  • Coolant channels exit right behind the cutting edge
  • Differentiated insert shapes to avoid grade mixing between central and periphery inserts
  • Optimized flutes to contain chips during machining 
  • Flanged shank to increase the overall drill stability in deep-drilling applications
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    Workpiece Material
    Workpiece Material
    • P Steel (596)
      • P0
        Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(556)
      • P1
        Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(556)
      • P2
        Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS(540)
      • P3
        Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS(540)
      • P4
        Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS(540)
      • P5
        Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS(532)
      • P6
        High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS(532)
    • M Stainless Steel (556)
      • M1
        Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS(556)
      • M2
        High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS(532)
      • M3
        Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS(532)
    • K Cast Iron (540)
      • K1
        Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS(540)
      • K2
        Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS(540)
      • K3
        High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS(540)
    • N Non-Ferrous Materials (508)
      • N1
        Wrought Aluminum (508)
      • N2
        Low-Silicon Aluminum Alloys and Magnesium Alloys Si <12.2%(508)
      • N3
        High-Silicon Aluminum Alloys Si >12.2%(508)
    • S High-Temp Alloys (516)
      • S1
        Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS(264)
      • S2
        Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS(264)
      • S3
        Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS(516)
      • S4
        Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS(516)
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    • CN (44)
    • DE (251)
    • GB (78)
    • IN (59)
    • SG (251)
    • US (119)
    Applications
    Applications
    • Convex DrillingConvex Drilling (190)
    • Corner Style SquareEnd DrillingCorner Style SquareEnd Drilling (260)
    • DrillingDrilling (492)
    • Inclined Entry DrillingInclined Entry Drilling (190)
    • Inclined Exit DrillingInclined Exit Drilling (190)
    • Stacked Plates DrillingStacked Plates Drilling (54)
    • X-Offset DrillingX-Offset Drilling (368)
    Cutting Diameter
    Cutting Diameter
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    Cutting Diameter
    Cutting Diameter
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    Cutting Diameter MintoCutting Diameter Max
    Cutting Condition
    Cutting Condition
    • Interrupted (40)
    • Stable (64)
    • Unstable (56)
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    Maximum Hole Depth [L4]
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    Maximum Hole Depth [L4] Min