Yamawa spiral tap SP P1 4-40UNC

[Features]
Since the flute is twisted, continuous small curled chips are ejected backward, preventing chip clogging, making it ideal for blind hole drilling.
Due to its good sharpness, it is especially suitable for tapping sticky work materials and plastics.
The tap is easy to bite.
Intermittent cutting such as a prepared hole with a keyway is also possible.
Since the edge strength is inferior to HT, HT shape is more suitable for high-hardness materials.

[Use]
For blind hole machining.
Work material: For low carbon steel, medium carbon steel and high carbon steel.

【specification】
Accuracy: P1
Nominal size: No.4-40UNF
Number of mountains: 40
Thread length (mm): 9
Total length (mm): 46
Shank diameter (mm): 4
Shank square part (mm): 3.2
Pilot hole diameter (mm): 2.33
Machined Thread: Unified Thread
Number of peaks to bite into: 2.6 peaks
Surface treatment: non-coating
Number of grooves: 2
Shank length: 25mm
Shank Square Length: 6mm
Under neck length: 14mm

[Specification 2]
Tap grade: P grade

[Material/Finish]
Kosoku tool steel (HSS)

[Set contents/accessories]
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【Note】
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