DC SWISS Point Tap SA320-4 UNF(J)5/16-24 146393 1 piece

Catalog number: 146393 Features: ●This tapping tool is manufactured for nickel alloys. ●Other than the lack of roundness at the root, it complies with the ISO3161 standard and is ideal for the aviation industry. Applications: ●For through hole machining. ●Workpiece material: Nickel alloy. Specifications: ●Precision: 3B ●Nominal size: 5/16 ●Pitch (mm): 1.058 ●Thread length (mm): 18 ●Total length (mm): 90 ●Shank diameter (mm): 8 ●Shank square section (mm): 6.2 ●Pilot hole diameter (mm): 7 ●Number of threads: 24 ●Number of engaging threads: 4 ●Machined thread: Unified thread ●Non-coated Material/Finish: ●Powdered high speed steel (HSS-E-PM)