HP Step Drill • Coolant • Steel / Iron

The High Performance (HP) Beyond step drills with through coolant for steel and iron are perfect for creating holes with multiple diameters. With the ability to perform drilling and chamfering in a single operation, these step drills streamline the holemaking process, eliminating the need for multiple tool set-ups and reducing setup time. The HP point design features a progressive rake angle and enables high feed rates - enhancing efficiency and precision in drilling operations. As a result, the HP solid carbide step drill for steel and cast iron stands as a versatile and efficient solution for industries seeking to optimize their machining processes for steel and iron components.

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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)
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    • 0.177 in(2)
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    • 0.473 in(2)
    • 0.492 in(2)
    • 0.551 in(2)
    • 0.689 in(1)
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    Cutting Diameter
    Cutting Diameter
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    • 17.475 mm(1)
    Cutting Diameter MintoCutting Diameter Max
    Maximum Hole Depth [L4]
    Maximum Hole Depth [L4]
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    • 13.201 mm(1)
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    • 17.901 mm(1)
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    • 37.801 mm(2)
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    • 46.6 mm(1)
    Maximum Hole Depth [L4] MintoMaximum Hole Depth [L4] Max
    Maximum Hole Depth [L4]
    Maximum Hole Depth [L4]
    • 0.414 in(1)
    • 0.52 in(1)
    • 0.591 in(1)
    • 0.622 in(1)
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    • 1.24 in(1)
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    • 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)
    • 1.098 in(1)
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    • 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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    • 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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