Yamawa spiral tap for aluminum material (for insert coil screw) AL-SP STI 1B + 30 M4X0.7

[Features]
● For parts made of relatively soft materials such as aluminum, internal threads for inserting insert coils are machined for the purpose of reinforcing internal threads and increasing durability.

[Use]
●For machining blind holes.
●Work material: For brass, brass castings, bronze, rolled aluminum materials, aluminum alloy castings, magnesium alloy castings, and zinc alloy castings.

【specification】
- Pilot hole diameter (mm): 4.27
●Accuracy: 1b+30
- Nominal size: M4
- Pitch (mm): 0.7
-Screw length (mm): 13
- Total length (mm): 60
- Shank diameter (mm): 5.5
-Shank square part (mm): 4.5

[Specification 2]
- Processing thread: metric thread
●Number of peaks with bite: 2.5 peaks
●Surface treatment: Nitriding
- Number of grooves: 3
-Shank length: 33mm
●Length of square part of shank: 7mm
-Outer diameter reference dimension: 4.909mm
- Neck length: 22mm

[Material/Finish]
Kosoku tool steel (HSS)

[Set contents/accessories]
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【Note】
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