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

    Solid Carbide Drill for Cast Iron and Steels

    Material Number6782609

    ISO Catalog IDK256A02500HPRANSI Catalog IDK256A02500HPR

    K256_HPR 8xD New & Innovation Products - 6782609 - Kennametal
    K256_HPR 8xD New & Innovation Products - 6782609 - Kennametal
    K256_HPR 8xD New & Innovation Products - 6782609 - Kennametal
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    K256_HPR 8xD New & Innovation Products - 6782609 - Kennametal
    K256_HPR 8xD New & Innovation Products - 6782609 - Kennametal
    K256_HPR 8xD New & Innovation Products - 6782609 - Kennametal+0
    K256_HPR 8xD New & Innovation Products - 6782609 - Kennametal
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    $473.65/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 6782609
    Metric
    Inch
    Material Number6782609
    ISO Catalog IDK256A02500HPR
    ANSI Catalog IDK256A02500HPR
    GradeKCK10A
    [D1] Drill Diameter M 6.35 mm
    [D1] Drill Diameter M 0.25 in
    [D1] Wire SizeE
    [L] Overall Length 98.552 mm
    [L] Overall Length 3.88 in
    [L3] Flute Length 58.928 mm
    [L3] Flute Length 2.32 in
    [L4] Maximum Drilling Depth 50.8 mm
    [L4] Maximum Drilling Depth 2 in
    [L5] Drill Point Length1.59 mm
    [L5] Drill Point Length0.0626 in
    [D] Adapter / Shank / Bore Diameter6.35 mm
    [D] Adapter / Shank / Bore Diameter0.25 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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    Application Data

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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
    View MoreView Less

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    Product data

    SDS

    Safety Data Sheets
    Create Solution to find the perfect compatible parts for your tool.
     
    Product Name
    Material Number
    ISO Catalog ID
    ANSI Catalog ID
     
    Hydraulic Sleeves • HC 20M - HC 32M • Metric with Inch Bores
    Hydraulic Sleeves • HC 20M - HC 32M • Metric with Inch Bores
    1093567
    20HCM0250
    20HCM0250
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    Round Shank • For Use with Inch Drills • Inch
    Round Shank • For Use with Inch Drills • Inch
    1604278
    SEF218250RSS075
    SEF218250RSS075
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    HC-CV Form AD
    HC-CV Form AD
    1605101
    CV40HC025350
    CV40HC025350
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    Hydraulic Sleeves • HC 1/2 - HC 1 1/4 • Inch with Inch Bores
    Hydraulic Sleeves • HC 1/2 - HC 1 1/4 • Inch with Inch Bores
    1606047
    50HC0250
    50HC0250
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    ER Standard Collets • Inch
    ER Standard Collets • Inch
    1729818
    16ER0250
    16ER0250
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    ER Standard Collets • Inch
    ER Standard Collets • Inch
    1729834
    20ER0250
    20ER0250
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    ER Standard Collets • Inch
    ER Standard Collets • Inch
    1729857
    25ER0250
    25ER0250
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    ER Standard Collets • Inch
    ER Standard Collets • Inch
    1729905
    32ER0250
    32ER0250
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    ER Standard Collets • Inch
    ER Standard Collets • Inch
    1729933
    40ER0250
    40ER0250
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    TT-SS
    TT-SS
    1794111
    SS075TT025600
    SS075TT025600
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