HP Step Drill • Coolant • Steel / Iron

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    Workpiece Material
    • P Steel (37)
      • P0
        Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(37)
      • P1
        Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(37)
      • P2
        Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS(37)
      • P3
        Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS(37)
      • P4
        Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS(37)
      • P5
        Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS(37)
      • P6
        High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS(37)
    • K Cast Iron (37)
      • K1
        Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS(37)
      • K2
        Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS(37)
      • K3
        High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS(37)
    Applications
    Applications
    • CountersinkingCountersinking (37)
    • DrillingDrilling (37)
    • Stacked Plates DrillingStacked Plates Drilling (1)
    Cutting Diameter
    Cutting Diameter
    • 0.147 in(2)
    • 0.165 in(2)
    • 0.177 in(2)
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    • 0.213 in(1)
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    • 0.473 in(2)
    • 0.492 in(2)
    • 0.551 in(2)
    • 0.689 in(1)
    Cutting Diameter MintoCutting Diameter Max
    Cutting Diameter
    Cutting Diameter
    • 3.725 mm(2)
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    • 14.0 mm(2)
    • 17.475 mm(1)
    Cutting Diameter MintoCutting Diameter Max
    Maximum Hole Depth [L4]
    Maximum Hole Depth [L4]
    • 10.5 mm(1)
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    • 37.801 mm(2)
    • 40.0 mm(1)
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    Maximum Hole Depth [L4] MintoMaximum Hole Depth [L4] Max
    Maximum Hole Depth [L4]
    Maximum Hole Depth [L4]
    • 0.414 in(1)
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    • 1.193 in(2)
    • 1.24 in(1)
    • 1.272 in(1)
    • 1.283 in(1)
    • 1.488 in(2)
    • 1.575 in(1)
    • 1.705 in(2)
    • 1.732 in(1)
    • 1.835 in(1)
    Maximum Hole Depth [L4] MintoMaximum Hole Depth [L4] Max
    Reach
    Reach
    • 0.843 in(1)
    • 1.024 in(1)
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    • 2.047 in(2)
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    • 2.39 in(1)
    • 2.402 in(2)
    • 2.559 in(2)
    • 2.598 in(1)
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    Reach MintoReach Max
    Reach
    Reach
    • 21.401 mm(1)
    • 26.0 mm(1)
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    • 28.1 mm(1)
    • 28.701 mm(1)
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    • 61.0 mm(2)
    • 65.0 mm(2)
    • 66.0 mm(1)
    • 72.3 mm(1)
    • 73.0 mm(1)
    Reach MintoReach Max
    Over All Length [L]
    Over All Length [L]
    • 2.598 in(4)
    • 3.11 in(7)
    • 3.504 in(7)
    • 4.016 in(5)
    • 4.213 in(7)
    • 4.529 in(4)
    • 4.843 in(2)
    • 5.157 in(1)
    Over All Length [L] MintoOver All Length [L] Max
    Over All Length [L]
    Over All Length [L]
    • 66.0 mm(4)
    • 79.0 mm(7)
    • 89.0 mm(7)
    • 102.0 mm(5)
    • 107.0 mm(7)
    • 115.0 mm(4)
    • 123.0 mm(2)
    • 131.0 mm(1)
    Over All Length [L] MintoOver All Length [L] Max
    Back-End
    Back-End Diameter
    Back-End Diameter
    • 6.0 mm(4)
    • 8.0 mm(7)
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    • 16.0 mm(4)
    • 18.0 mm(2)
    • 20.0 mm(1)
    Back-End Diameter MintoBack-End Diameter Max
    Back-End Diameter
    Back-End Diameter
    • 0.237 in(4)
    • 0.315 in(7)
    • 0.394 in(6)
    • 0.473 in(6)
    • 0.551 in(7)
    • 0.63 in(4)
    • 0.709 in(2)
    • 0.787 in(1)
    Back-End Diameter MintoBack-End Diameter Max
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