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    T660 • Machine Screw and Fractional • Form D Plug Chamfer

    Beyond™ Left-Hand Spiral-Flute, Right-Hand Cut HSS-E-PM Taps • Through Holes

    Material Number5565559

    ISO Catalog IDT660NF03125-24RH4-AANSI Catalog IDT660NF03125-24RH4-A

    T660 ANSI Inch Threading - 5565559 - Kennametal
    T660 ANSI Inch Threading - 5565559 - Kennametal
    T660 ANSI Inch Threading - 5565559 - Kennametal
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    T660 ANSI Inch Threading - 5565559 - Kennametal
    T660 ANSI Inch Threading - 5565559 - Kennametal
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    • S High-Temp Alloys
    • Tapping: Through HoleTapping: Through Hole
    • Chamfer Form D (3.5–5)Chamfer Form D (3.5–5)
    • HSS-E-PMHSS-E-PM
    • Flood Coolant: TappingFlood Coolant: Tapping
    • Manufacturer’s Specs: UNFManufacturer’s Specs: UNF
    • Manufacturer’s Specs: UNCManufacturer’s Specs: UNC
    • Manufacturer’s Specs: ANSIManufacturer’s Specs: ANSI
    • Tapping Helix Angle: L15°Tapping Helix Angle: L15°
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    Drawings for 5565559
    Metric
    Inch
    Material Number5565559
    ISO Catalog IDT660NF03125-24RH4-A
    ANSI Catalog IDT660NF03125-24RH4-A
    GradeKSS20
    [D1-TDZ] Thread Diameter Size5/16 - 24
    [L] Overall Length 69 mm
    [L] Overall Length 2.72 in
    [L3] Thread Length 12.4 mm
    [L3] Thread Length .49 in
    [L2] Useable Length 28.8 mm
    [L2] Useable Length 1.13 in
    [D] Adapter / Shank / Bore Diameter8.077 mm
    [D] Adapter / Shank / Bore Diameter.318 in
    [Z] Number of Flutes3
    Tap Pitch Diameter LimitH4
    See all Product Variants

    Workpiece Materials

    • High-Temp Alloys

    Uses and application

    • Tapping: Through HoleTapping: Through Hole
    • Chamfer Form D (3.5–5)Chamfer Form D (3.5–5)
    • HSS-E-PMHSS-E-PM
    • Flood Coolant: TappingFlood Coolant: Tapping
    • Manufacturer’s Specs: UNFManufacturer’s Specs: UNF
    • Manufacturer’s Specs: UNCManufacturer’s Specs: UNC
    • Manufacturer’s Specs: ANSIManufacturer’s Specs: ANSI
    • Tapping Helix Angle: L15°Tapping Helix Angle: L15°

    Features and benefits

    • KSS20 nitride for titanium and titanium alloys.
    • KSSM24 TiN + CrC/C for titanium and titanium alloys.

    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

    Tolerances

    shank tolerance
    Dtolerance h6 + / -
    .250–.375+0, -.0004
    .438–.625+0, -.0004
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    Speeds & Feeds

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    Application Data

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    CAD Drawings Models

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    Product data

    SDS

    Safety Data Sheets

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    Product Name
    Material Number
    ISO Catalog ID
    ANSI Catalog ID
     
    DA J series Collet
    DA J series Collet
    1016529
    JTC031
    JTC031
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    DA K series - Tap Collets
    DA K series - Tap Collets
    1016530
    KTC031
    KTC031
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    DA L series - Tap Collets
    DA L series - Tap Collets
    1016531
    LTC031
    LTC031
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    TG100 Solid Tap Collet
    TG100 Solid Tap Collet
    1017389
    100TGST031
    100TGST031
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    ER Tension-Only Solid Tap Collets
    ER Tension-Only Solid Tap Collets
    1026394
    25ERTCT031
    25ERTCT031
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    ER Tension-Only Solid Tap Collets
    ER Tension-Only Solid Tap Collets
    1026397
    32ERTCT031
    32ERTCT031
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    ER Standard Tap Collets • Inch/Metric ANSI
    ER Standard Tap Collets • Inch/Metric ANSI
    1026428
    20ERTC031
    20ERTC031
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    ER Standard Tap Collets • Inch/Metric ANSI
    ER Standard Tap Collets • Inch/Metric ANSI
    1026446
    25ERTC031
    25ERTC031
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    ER Standard Tap Collets • Inch/Metric ANSI
    ER Standard Tap Collets • Inch/Metric ANSI
    1026456
    32ERTC031
    32ERTC031
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    ER Standard Tap Collets • Inch/Metric ANSI
    ER Standard Tap Collets • Inch/Metric ANSI
    1026476
    40ERTC031
    40ERTC031
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