Flat Bottom Drills • Flat-Bottom Applications

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    Workpiece Material
    • P Steel (155)
      • P0
        Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(101)
      • P1
        Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(101)
      • P2
        Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS(101)
      • P3
        Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS(101)
      • P4
        Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS(101)
      • P5
        Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS(155)
      • P6
        High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS(155)
    • M Stainless Steel (54)
      • M1
        Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS(54)
      • M2
        High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS(54)
      • M3
        Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS(54)
    • K Cast Iron (101)
      • K1
        Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS(101)
      • K2
        Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS(101)
      • K3
        High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS(101)
    • N Non-Ferrous Materials (57)
      • N1
        Wrought Aluminum (57)
      • N2
        Low-Silicon Aluminum Alloys and Magnesium Alloys Si <12.2%(57)
      • N3
        High-Silicon Aluminum Alloys Si >12.2%(57)
      • N4
        Copper, Brass, Zinc-based on machinability index range of 70-100 (57)
    • S High-Temp Alloys (54)
      • S1
        Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS(54)
      • S2
        Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS(54)
      • S3
        Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS(54)
      • S4
        Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS(54)
    Applications
    Applications
    • Convex DrillingConvex Drilling (212)
    • Corner Style SquareEnd DrillingCorner Style SquareEnd Drilling (212)
    • CornerStyle Chamfer DrillingCornerStyle Chamfer Drilling (212)
    • CounterboringCounterboring (212)
    • CountersinkingCountersinking (148)
    • Cross Hole DrillingCross Hole Drilling (211)
    • DrillingDrilling (212)
    • Flat Bottom DrillingFlat Bottom Drilling (212)
    • Inclined Entry DrillingInclined Entry Drilling (212)
    • Inclined Exit DrillingInclined Exit Drilling (212)
    • X-Offset DrillingX-Offset Drilling (1)
    Cutting Diameter
    Cutting Diameter
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    • 0.276 in(3)
    • 0.281 in(1)
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    Maximum Hole Depth [L4]
    Maximum Hole Depth [L4]
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    Maximum Hole Depth [L4] MintoMaximum Hole Depth [L4] Max
    Maximum Hole Depth [L4]
    Maximum Hole Depth [L4]
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    Maximum Hole Depth [L4] MintoMaximum Hole Depth [L4] Max
    Reach
    Reach
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    Reach MintoReach Max
    Reach
    Reach
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    Over All Length [L]
    Over All Length [L]
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    Over All Length [L] MintoOver All Length [L] Max
    Over All Length [L]
    Over All Length [L]
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    Over All Length [L] MintoOver All Length [L] Max
    Application
    Coating
    Coating
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    • Uncoated (57)
    Grade Of Cutting Tool
    Grade Of Cutting Tool
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    • KCU15 (87)
    • KN15 (57)
    Back-End
    Back-End Diameter
    Back-End Diameter
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    Back-End Diameter
    Back-End Diameter
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    Back-End Diameter MintoBack-End Diameter Max
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