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    T621 • DIN 371 and 376 • Form D Plug Chamfer • Through Coolant • Machine Screw and Fractional

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

    Material Number5212240

    ISO Catalog IDT621NF04375-20R3BX-D6ANSI Catalog IDT621NF04375-20R3BX-D6

    T621 LHSF DIN inch Threading - 5212240 - Kennametal
    T621 LHSF DIN inch Threading - 5212240 - Kennametal
    T621 LHSF DIN inch Threading - 5212240 - Kennametal
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    T621 LHSF DIN inch Threading - 5212240 - Kennametal
    T621 LHSF DIN inch Threading - 5212240 - Kennametal
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    • P Steel
    • M Stainless Steel
    • S High-Temp Alloys
    • Tapping: Through HoleTapping: Through Hole
    • DIN number 371DIN number 371
    • DIN number 376DIN number 376
    • Chamfer Form D (3.5–5)Chamfer Form D (3.5–5)
    • HSS-E-PMHSS-E-PM
    • Class of Fit: 3BXClass of Fit: 3BX
    • Tapping: Through CoolantTapping: Through Coolant
    • Manufacturer’s Specs: UNFManufacturer’s Specs: UNF
    • Manufacturer’s Specs: UNCManufacturer’s Specs: UNC
    • Tapping Helix Angle: L15°Tapping Helix Angle: L15°
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    Drawings for 5212240
    Metric
    Inch
    Material Number5212240
    ISO Catalog IDT621NF04375-20R3BX-D6
    ANSI Catalog IDT621NF04375-20R3BX-D6
    GradeKP6525
    [D1-TDZ] Thread Diameter Size7/16 - 20
    [L] Overall Length 100 mm
    [L] Overall Length 3.937 in
    [L3] Thread Length 15 mm
    [L3] Thread Length 0.591 in
    [L2] Useable Length 41 mm
    [L2] Useable Length 1.614 in
    [D] Adapter / Shank / Bore Diameter8 mm
    [D] Adapter / Shank / Bore Diameter0.315 in
    [Z] Number of Flutes3
    Dimension StandardDIN 376
    Thread Tolerance Class ANSI3BX
    See all Product Variants

    Workpiece Materials

    • Steel
    • Stainless Steel
    • High-Temp Alloys

    Uses and application

    • Tapping: Through HoleTapping: Through Hole
    • DIN number 371DIN number 371
    • DIN number 376DIN number 376
    • Chamfer Form D (3.5–5)Chamfer Form D (3.5–5)
    • HSS-E-PMHSS-E-PM
    • Class of Fit: 3BXClass of Fit: 3BX
    • Tapping: Through CoolantTapping: Through Coolant
    • Manufacturer’s Specs: UNFManufacturer’s Specs: UNF
    • Manufacturer’s Specs: UNCManufacturer’s Specs: UNC
    • Tapping Helix Angle: L15°Tapping Helix Angle: L15°

    Grades

    KP6525

    KP6525

    Coated HSS-E-PM. PVD — heat- and wear-resistant high vanadium — cobalt powder metal HSS substrate coated with wear-resistant TiCN base layer and low-friction TiN top layer. Use in steel, cast iron, and cast aluminum with silicon.

    Features and benefits

    • KP6525 TiCN + TiN for steel.

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    Tolerance

    shank tolerance
    D fractionaltolerance h6 + / -
    3 6+0, -0,008
    6 10+0, -0,009
    10 18+0, -0,011
    shank tolerance
    D fractionaltolerance h6 + / -
    .250–.375+0, -.0004
    .438–.625+0, -.0004
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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
     
    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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