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    T491 • Form E Bottoming Chamfer • Through Coolant • Metric

    Beyond™ Solid Carbide Forming Taps • Blind Holes

    Material Number5520811

    ISO Catalog IDT491M080X125R6HX-D74ANSI Catalog IDT491M080X125R6HX-D74

    T491 DIN METRIC Threading - 5520811 - Kennametal
    T491 DIN METRIC Threading - 5520811 - Kennametal
    T491 DIN METRIC Threading - 5520811 - Kennametal
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    T491 DIN METRIC Threading - 5520811 - Kennametal
    T491 DIN METRIC Threading - 5520811 - Kennametal
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    • N Non-Ferrous
    • Tapping: Blind HoleTapping: Blind Hole
    • Class of Fit: 6HXClass of Fit: 6HX
    • Chamfer Form E (1.5–2)Chamfer Form E (1.5–2)
    • Through Coolant: Axial: TappingThrough Coolant: Axial: Tapping
    • HMHM
    • Manufacturer’s Specs: MManufacturer’s Specs: M
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    Drawings for 5520811
    Metric
    Inch
    Material Number5520811
    ISO Catalog IDT491M080X125R6HX-D74
    ANSI Catalog IDT491M080X125R6HX-D74
    GradeKCN14
    [D1-TDZ] Thread Diameter SizeM8 X 1.25
    [L] Overall Length 90 mm
    [L] Overall Length 3.54 in
    [L3] Thread Length 13 mm
    [L3] Thread Length 0.51 in
    [L2] Useable Length 35 mm
    [L2] Useable Length 1.38 in
    [D] Adapter / Shank / Bore Diameter8 mm
    [D] Adapter / Shank / Bore Diameter0.315 in
    [Z] Number of Flutes2
    Number of Lube Grooves2
    Dimension StandardDIN 2174
    Thread Tolerance Class ISO6HX-I
    See all Product Variants

    Workpiece Materials

    • Non-Ferrous

    Uses and application

    • Tapping: Blind HoleTapping: Blind Hole
    • Class of Fit: 6HXClass of Fit: 6HX
    • Chamfer Form E (1.5–2)Chamfer Form E (1.5–2)
    • Through Coolant: Axial: TappingThrough Coolant: Axial: Tapping
    • HMHM
    • Manufacturer’s Specs: MManufacturer’s Specs: M

    Grades

    KCN14

    KCN14

    Coated carbide, PVD — two-layer coating over fine-grain carbide. Coating consists of low-friction CrC/C over wear-resistant TiN. CrC/C resists galling of non-ferrous materials to the tap. Provides superior performance for tapping cast aluminum and other non-ferrous materials.

    Features and benefits

    • KCN14 TiN + CrC/C for aluminum.

    Create Solution to calculate Feeds and Speeds

    After creating a solution just choose the Feeds & Speeds icon and our system will provide recommendations. You can customize the information by adding your machine and specifications or make adjustments using the sliders.

    Tolerance

    shank tolerance
    Dtolerance h6 + / -
    6+0, -0,008
    8 10+0, -0,009
    12 16+0, -0,011
    shank tolerance
    Dtolerance h6 + / -
    .250–.375+0, -.0004
    .438–.625+0, -.0004
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    Product data

    SDS

    Safety Data Sheets

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    Create Solution to find the perfect compatible parts for your tool.
     
    Product Name
    Material Number
    ISO Catalog ID
    ANSI Catalog ID
     
    TG50 Solid Tap Collet
    TG50 Solid Tap Collet
    1017204
    50TGST080062M
    50TGST080062M
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    DA L series - Tap Collets
    DA L series - Tap Collets
    1117802
    LTC080063M
    LTC080063M
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    ER Standard Tap Collets • Metric DIN and ISO
    ER Standard Tap Collets • Metric DIN and ISO
    1123744
    25ERTC080062M
    25ERTC080062M
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    RC1 Solid tap adapters
    RC1 Solid tap adapters
    1127007
    RC1TA080063M080
    RC1TA080063M080
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    ER Standard Tap Collets • Metric DIN and ISO
    ER Standard Tap Collets • Metric DIN and ISO
    1128863
    32ERTC080062M
    32ERTC080062M
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    ER Standard Tap Collets • Metric DIN and ISO
    ER Standard Tap Collets • Metric DIN and ISO
    1130521
    40ERTC080062M
    40ERTC080062M
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    RC2 Solid tap adapters
    RC2 Solid tap adapters
    1131652
    RC2TA080062M080
    RC2TA080062M080
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    RC1 Solid tap adapters
    RC1 Solid tap adapters
    1132337
    RC1TA080062M080
    RC1TA080062M080
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    RC2 Solid tap adapters
    RC2 Solid tap adapters
    1138653
    RC2TA080063M080
    RC2TA080063M080
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    DA K series - Tap Collets
    DA K series - Tap Collets
    1192313
    KTC080063M
    KTC080063M
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