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    KenDrill™ HPR • 8 x D • Internal Coolant • Straight Shank • Metric

    Solid Carbide Drill for Cast Iron and Steels

    Material Number6783422

    ISO Catalog IDB256A08000HPRANSI Catalog IDB256A08000HPR

    B256_HPR 8xD New & Innovation Products - 6783422 - Kennametal
    B256_HPR 8xD New & Innovation Products - 6783422 - Kennametal
    B256_HPR 8xD New & Innovation Products - 6783422 - Kennametal
    B256_HPR 8xD New & Innovation Products - 6783422 - Kennametal
    B256_HPR 8xD New & Innovation Products - 6783422 - Kennametal
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    B256_HPR 8xD New & Innovation Products - 6783422 - Kennametal
    B256_HPR 8xD New & Innovation Products - 6783422 - Kennametal
    B256_HPR 8xD New & Innovation Products - 6783422 - Kennametal+0
    B256_HPR 8xD New & Innovation Products - 6783422 - Kennametal
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    $340.64/each
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    • P Steel
    • K Cast Iron
    • DrillingDrilling
    • Drilling: Inclined ExitDrilling: Inclined Exit
    • Drilling: Stacked PlatesDrilling: Stacked Plates
    • Drilling: Cross-Hole DrillingDrilling: Cross-Hole Drilling
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    Drawings for 6783422
    Metric
    Inch
    Material Number6783422
    ISO Catalog IDB256A08000HPR
    ANSI Catalog IDB256A08000HPR
    GradeKCK10A
    [D1] Drill Diameter M 8 mm
    [D1] Drill Diameter M .315 in
    [L] Overall Length 113 mm
    [L] Overall Length 4.448 in
    [L3] Flute Length 74 mm
    [L3] Flute Length 2.913 in
    [L4] Maximum Drilling Depth 64 mm
    [L4] Maximum Drilling Depth 2.519 in
    [L5] Drill Point Length2 mm
    [L5] Drill Point Length.0787 in
    [LS] Shank Length 36 mm
    [LS] Shank Length 1.417 in
    [D] Adapter / Shank / Bore Diameter8 mm
    [D] Adapter / Shank / Bore Diameter.315 in
    See all Product Variants

    Workpiece Materials

    • Steel
    • Cast Iron

    Uses and application

    • DrillingDrilling
    • Drilling: Inclined ExitDrilling: Inclined Exit
    • Drilling: Stacked PlatesDrilling: Stacked Plates
    • Drilling: Cross-Hole DrillingDrilling: Cross-Hole Drilling

    Grades

    KCK10A

    KCK10A

    Composition: Multilayered PVD AlTiN-based coated submicron grain carbide with superior surface finish.
    Application: First choice for cast iron. This grade utilizes a newly developed coating combined with a state-of-the-art surface condition to offer extraordinary wear resistance in abrasive materials at elevated cutting conditions with improved performance consistency.

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    Tolerance

    nominal size rangeD1 tolerance m7D tolerance h6
    1–30,002/0,0120,000/-0,006
    3–60,004/0,0160,000/-0,008
    6–100,006/0,0210,000/-0,009
    10–180,007/0,0250,000/-0,011
    18–25,40,008/0,0290,000/-0,013
    nominal size rangeD1 tolerance m7D tolerance h6
    .0394–.1181.0001/.0005.0000/-.0002
    .1181–.2362.0002/.0006.0000/-.0003
    .2362–.3937.0002/.0008.0000/-.0004
    .3937–.7087.0003/.0010.0000/-.0004
    .7087–1.0000.0003/.0011.0000/-.0005
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    Application Data

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    Product data

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    Product Name
    Material Number
    ISO Catalog ID
    ANSI Catalog ID
     
    DA Collets
    DA Collets
    1014133
    100DA080M
    100DA080M
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    DA Collets
    DA Collets
    1014174
    100DA085M
    100DA085M
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    DA Collets
    1014244
    200DA080M
    200DA080M
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    TG100 Series • Metric
    TG100 Series • Metric
    1014462
    100TGHP080M
    100TGHP080M
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    TG100 Series • Metric
    TG100 Series • Metric
    1014699
    100TG080M
    100TG080M
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    ER Standard Collets • Metric
    ER Standard Collets • Metric
    1025838
    20ER080M
    20ER080M
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    ER Standard Collets • Metric
    ER Standard Collets • Metric
    1025839
    20ER090M
    20ER090M
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    TG100 Series • Metric
    TG100 Series • Metric
    1080543
    100TGC080M
    100TGC080M
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    ER Standard Collets • Metric
    ER Standard Collets • Metric
    1084750
    32ER080M
    32ER080M
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    DA Collets
    DA Collets
    1092288
    180DAC080M
    180DAC080M
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    • HPR Drill: Cross-Hole Craziness

      HPR Drill: Cross-Hole Craziness

    • HPR Drill:Solid Carbide Drill for Cast Iron

      HPR Drill:Solid Carbide Drill for Cast Iron

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