Yamawa Spiral Tap for Aluminum (for Insert Coil Screws) AL-SP STI 1B M20X2.5 AL-SP-M20X2.5 1 piece

Catalog number: AL-SP-M20X2.5 Features: ● For machining female threads for inserting insert coils in order to reinforce the female thread and increase durability in parts made of relatively soft materials such as aluminum. Applications: ● For blind hole machining. ● Workpiece: Brass, brass castings, bronze, rolled aluminum, aluminum alloy castings, magnesium alloy castings, zinc alloy castings. Specifications: ● Precision: 1b ● Nominal size: M20 ● Pitch (mm): 2.5 ● Thread length (mm): 39 ● Total length (mm): 120 ● Shank diameter (mm): 19.0 ● Shank square section (mm): 15.0 ● Pilot hole diameter (mm): 20.9 ● Number of grooves: 4 ● Shank length (mm): 55 ● Length of shank square section (mm): 18 ● Reference dimension of outer diameter (mm): 23.248 Material/Finish: ● High-speed tool steel (HSS)