Yamawa American Spiral Tap for Taper Pipe Threads, Long Thread Type, SP-NPT 1/4-18 SP-NPT-1/4-18 1 Piece

Catalog number: SP-NPT-1/4-18 Features: ●This is a spiral tap for American pipe taper threads used for threading products where the main purpose is to make the threaded part tight when connecting pipe parts, etc. Applications: ●For blind/through hole processing. ●Workpiece material: Low carbon steel, medium carbon steel, high carbon steel. Specifications: ●Precision: ANSI G ●Nominal size: 1/4 ●Thread length (mm): 28 ●Total length (mm): 62 ●Shank diameter (mm): 11 ●Shank square section (mm): 9 ●Pilot hole diameter (mm): 10.85 ●Number of threads: 18 ●Number of engagement threads: 2.5 threads ●Machining thread: Pipe taper thread ●Surface treatment: Non-coated ●Length to reference diameter (mm): 17.45 ●Number of grooves: 3 grooves ●Number of grooves: 3 ●Length of shank square section (mm): 12 Material/Finish: ●High speed tool steel (HSS)