DC SWISS Spiral Tap SA350-3 UNF(J)4-48 149015 1 piece

Catalog number: 149015 Features: ●Tap tool manufactured for nickel alloys. ●Complies with ISO3161 standards except for the lack of rounding at the bottom of the valley, making it ideal for the aviation industry. Applications: ●For blind hole machining. ●Workpiece material: Nickel alloy. (＞850≦1600 N/m［［Ｍ２］］) ●For the aviation industry. Specifications: ●Precision: 3B ●Nominal size: NO.4 ●Pitch (mm): 0.529 ●Thread length (mm): 12 ●Total length (mm): 56 ●Shank diameter (mm): 3.5 ●Shank square section (mm): 2.7 ●Pilot hole diameter (mm): 2.35 ●Number of threads: 48 ●Number of engaging threads: 2.5 threads ●Machined thread: Unified thread ●Non-coated Material/Finish: ●Powdered high speed steel (HSS-E-PM)