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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 Number4027918

    ISO Catalog IDT621M180X250R6HX-D6ANSI Catalog IDT621M180X250R6HX-D6

    T621 LHSF mm Threading - 4027918 - Kennametal
    T621 LHSF mm Threading - 4027918 - Kennametal
    T621 LHSF mm Threading - 4027918 - Kennametal
    T621 LHSF mm Threading - 4027918 - Kennametal
    T621 LHSF mm Threading - 4027918 - Kennametal
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    T621 LHSF mm Threading - 4027918 - Kennametal
    T621 LHSF mm Threading - 4027918 - Kennametal
    T621 LHSF mm Threading - 4027918 - Kennametal+0
    T621 LHSF mm Threading - 4027918 - Kennametal
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    • M Stainless Steel
    • 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 4027918
    Drawings for 4027918
    Metric
    Inch
    Material Number4027918
    ISO Catalog IDT621M180X250R6HX-D6
    ANSI Catalog IDT621M180X250R6HX-D6
    GradeKM6515
    [D1-TDZ] Thread Diameter SizeM18 X 2,5
    [L] Overall Length 125 mm
    [L] Overall Length 4.92 in
    [L3] Thread Length 25 mm
    [L3] Thread Length .98 in
    [L2] Useable Length 58 mm
    [L2] Useable Length 2.28 in
    [D] Adapter / Shank / Bore Diameter14 mm
    [D] Adapter / Shank / Bore Diameter.5512 in
    [Z] Number of Flutes4
    Dimension StandardDIN 376
    Thread Tolerance Class ISO6HX-I
    See all Product Variants

    Workpiece Materials

    • Stainless Steel

    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

    KM6515

    KM6515

    Coated HSS-E-PM. PVD — heat- and wear-resistant high vanadium — cobalt powder metal HSS substrate. Coating consists of low-friction CrC/C over wear-resistant TiN base layer. Use for tapping stainless steel and non-ferrous materials.

    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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