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Screw-Hole-Related Tools（Screw size (Nominal)：1 1/4）

Threading tools have functions to cut threads in accordance with the required thread types and sizes, or to conduct plastic forming. Commonly-used tool type is formed tools called taps. They are used in many different ways; for example, handles are attached to them for manual machining, or for large-lot production, they are mounted to machine tools called tool holders or NC machine tool. High-speed steel is most commonly employed for these tools, and alloy carbide (coated alloy carbide is mainly applied) is also increasingly employed for its durability. When threading with taps, the thinner taps are, the more likely they break. As cutting chips solidify with heat, or the tap end makes contact with the bottom of pilot hole, there is more possibility the tap is damaged. Additionally, when using a coil insert, a dedicated tap needs to be used rather than a regular tap.

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    Hand Taps_HT

    Hand Taps_HT

    YAMAWA MFG

    Hand tap used for general tapping work.
    [Features]
    ・ High blade tip strength makes it easy for regrinding.
    ・ More suitable for manual work compared to taps of other shapes.
    ・ 2 types are available, with 5P or 1.5P chamfered threads.
    ・ When machining a blind hole manually, finish machining with 1.5P is recommended after first machining with 5P.
    ・ Machining with mechanical machinery is also possible.
    ・ Has straight grooves out of consideration for cutting chip stow.
    ・ Suitable for work materials whose cutting chips are powder or small coiled close to the powder.
    [Applications]
    ・ Ideal for threading SPC/SPH and other thin plates or SS400/S20 or below mild steel.

    Screw size (Nominal) Screw Types work material Pitch (P), Number of Threading(mm) Tool Material Type Tap Type Hole type Chamfer threads (Lcf) Coating Type Coating Y/N Overall Length (L)(mm)
    1 1/4 unified Medium carbon steel (carbon content 0.25 to 0.45%)[○] / High Carbon Steel (C with a content over 0.45%)[○] / Quenched and tempered steel (25 to 35 HRC)[○] / Tool Steel (Before SKD Hardening)[○] / Steel casting (SC)[○] / Cast Iron (FC)[○] / Ductile Cast Iron (FCD)[○] / Brass (Bs)[○] / Brass cast iron (BsC)[○] / Aluminum Alloy Casting (AC, ADC)[○] / Zinc Alloy Casting (ZDC)[○] 7 ～ 12 High-speed steel Hand Tap For through hole / For blind hole 1.5P ～ 5P - NA 145
    From: ₹ 21,380.87
    Days to Ship: 7 Day(s) or more
    day to ship 7 Day(s) or more

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    Spiral Fluted Taps_SP

    Spiral Fluted Taps_SP

    YAMAWA MFG

    The spiral flute tap is ideal for machining blind holes as cutting chip is discharged from the grooves twisted in the same direction as the threads.
    [Features]
    ・ The grooves are twisted in the same direction as the threads for not only good scrap discharging performance but also great cutting performance.
    ・ Intermittent cutting of female threads with keyway is also possible.
    ・ Capable of machining both synchronously and asynchronously.
    ・ Ideal for machining blind holds as the groove is twisted, continuous small coiled scraps are discharged to the rear, and it does not cause cutting chip clogging.
    ・ Ideal for tapping especially sticky work materials, plastics, etc. due to its sharpness.
    ・ The tap can easily cut.
    ・ Intermittent cutting of pilot holes with keyway is also possible.
    ・ Since the blade strength is inferior to HT, the HT shape is more suitable for hard materials.
    [Applications]
    ・ Ideal for machining blind holes.

    Screw size (Nominal) Screw Types work material Pitch (P), Number of Threading(mm) Tool Material Type Tap Type Hole type Chamfer threads (Lcf) Coating Type Coating Y/N Overall Length (L)(mm)
    1 1/4 Whitworth Low-Carbon Steel (carbon alloy less than 0.25%)[○] / Medium carbon steel (carbon content 0.25 to 0.45%)[○] / High Carbon Steel (C with a content over 0.45%)[○] / Quenched and tempered steel (25 to 35 HRC)[○] / Steel casting (SC)[○] / Brass (Bs)[○] / Brass cast iron (BsC)[○] / Bronze (Pb)[○] / Aluminum Rolled Material (AL)[○] / Aluminum Alloy Casting (AC, ADC)[○] / Magnesium Alloy (MC)[○] / Zinc Alloy Casting (ZDC)[○] 7 High-speed steel Spiral Tap For blind hole 2.5P - NA 145
    From: ₹ 18,522.93
    Days to Ship: 5 Day(s)
    day to ship 5 Day(s)
Brand
Product Series
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Screw size (Nominal)
Screw Types
work material
Pitch (P), Number of Threading(mm)
Tool Material Type
Tap Type
Hole type
Chamfer threads (Lcf)
Coating Type
Coating Y/N
Overall Length (L)(mm)

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    Hand Taps_HT

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        Spiral Fluted Taps_SP
          Brand

          YAMAWA MFG

          YAMAWA MFG

          Product Series

          Hand Taps_HT

          Spiral Fluted Taps_SP

          From

          ₹ 21,380.87

          ₹ 18,522.93

          Days to Ship 7 Day(s) or more 5 Day(s)
          Screw size (Nominal)1 1/41 1/4
          Screw TypesunifiedWhitworth
          work materialMedium carbon steel (carbon content 0.25 to 0.45%)[○] / High Carbon Steel (C with a content over 0.45%)[○] / Quenched and tempered steel (25 to 35 HRC)[○] / Tool Steel (Before SKD Hardening)[○] / Steel casting (SC)[○] / Cast Iron (FC)[○] / Ductile Cast Iron (FCD)[○] / Brass (Bs)[○] / Brass cast iron (BsC)[○] / Aluminum Alloy Casting (AC, ADC)[○] / Zinc Alloy Casting (ZDC)[○]Low-Carbon Steel (carbon alloy less than 0.25%)[○] / Medium carbon steel (carbon content 0.25 to 0.45%)[○] / High Carbon Steel (C with a content over 0.45%)[○] / Quenched and tempered steel (25 to 35 HRC)[○] / Steel casting (SC)[○] / Brass (Bs)[○] / Brass cast iron (BsC)[○] / Bronze (Pb)[○] / Aluminum Rolled Material (AL)[○] / Aluminum Alloy Casting (AC, ADC)[○] / Magnesium Alloy (MC)[○] / Zinc Alloy Casting (ZDC)[○]
          Pitch (P), Number of Threading(mm)7 ～ 127
          Tool Material TypeHigh-speed steelHigh-speed steel
          Tap TypeHand TapSpiral Tap
          Hole typeFor through hole / For blind holeFor blind hole
          Chamfer threads (Lcf)1.5P ～ 5P2.5P
          Coating Type--
          Coating Y/NNANA
          Overall Length (L)(mm)145145

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