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    T621 • DIN 371, 374, and 376 • Form D Plug Chamfer • Through Coolant • Metric • For Steel and Stainless Steel

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

    Material Number4028490

    ISO Catalog IDT621M080X125R6HX-D1ANSI Catalog IDT621M080X125R6HX-D1

    T621 LHSF mm Threading - 4028490 - Kennametal
    T621 LHSF mm Threading - 4028490 - Kennametal
    T621 LHSF mm Threading - 4028490 - Kennametal
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    T621 LHSF mm Threading - 4028490 - Kennametal
    T621 LHSF mm Threading - 4028490 - Kennametal
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    • P Steel
    • M Stainless Steel
    • S High-Temp Alloys
    • Tapping: Through HoleTapping: Through Hole
    • Class of Fit: 6HXClass of Fit: 6HX
    • DIN number 371DIN number 371
    • DIN number 374DIN number 374
    • DIN number 376DIN number 376
    • Chamfer Form D (3.5–5)Chamfer Form D (3.5–5)
    • HSS-E-PMHSS-E-PM
    • Tapping: Through CoolantTapping: Through Coolant
    • Manufacturer’s Specs: MManufacturer’s Specs: M
    • Manufacturer’s Specs: MFManufacturer’s Specs: MF
    • Tapping Helix Angle: L15°Tapping Helix Angle: L15°
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    Drawings for 4028490
    Metric
    Inch
    Material Number4028490
    ISO Catalog IDT621M080X125R6HX-D1
    ANSI Catalog IDT621M080X125R6HX-D1
    GradeKP6525
    [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 .51 in
    [L2] Useable Length 35 mm
    [L2] Useable Length 1.38 in
    [D] Adapter / Shank / Bore Diameter8 mm
    [D] Adapter / Shank / Bore Diameter.315 in
    [Z] Number of Flutes3
    Dimension StandardDIN 371
    Thread Tolerance Class ISO6HX-I
    See all Product Variants

    Workpiece Materials

    • Steel
    • Stainless Steel
    • High-Temp Alloys

    Uses and application

    • Tapping: Through HoleTapping: Through Hole
    • Class of Fit: 6HXClass of Fit: 6HX
    • DIN number 371DIN number 371
    • DIN number 374DIN number 374
    • DIN number 376DIN number 376
    • Chamfer Form D (3.5–5)Chamfer Form D (3.5–5)
    • HSS-E-PMHSS-E-PM
    • Tapping: Through CoolantTapping: Through Coolant
    • Manufacturer’s Specs: MManufacturer’s Specs: M
    • Manufacturer’s Specs: MFManufacturer’s Specs: MF
    • 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

    • KM6515 TiN + CrC/C for stainless steel.
    • KP6525 TiCN + TiN for steel.

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    Tolerance

    Tolerances

    shank tolerance
    Dtolerance h6 + / -
    6+0, -0,008
    8 10+0, -0,009
    12 16+0, -0,011
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    Material Number
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    ER Standard Tap Collets • Metric DIN and ISO
    ER Standard Tap Collets • Metric DIN and ISO
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    ER Standard Tap Collets • Metric DIN and ISO
    ER Standard Tap Collets • Metric DIN and ISO
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    ER Standard Tap Collets • Metric DIN and ISO
    ER Standard Tap Collets • Metric DIN and ISO
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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
    1192313
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    KTC080063M
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