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Caution
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 Types | Whitworth | Nominal | 1 1/4 | Pitch, Number of Threading(mm) | 7 |
---|---|---|---|---|---|
Chamfer threads | 2.5P | Tool Material Type | High-speed steel | work material | 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) |
Tap Type | Spiral Tap | Hole type | For blind hole | Coating Y/N | NA |
Overall Length (L)(mm) | 145 | Class | P4 | Thread Length(mm) | 46 |
Shank diameter (Ds)(mm) | 24 | Shank square width (K)(mm) | 19 | Shank square part length(mm) | 22 |
Number of Grooves | 4 | Shape | 7 |
Please check the type/dimensions/specifications of the part SPMSW20Y in the Spiral Fluted Taps_SP series.
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