Yamawa Non-ferrous Roll Tap N-RS G7 4-40UNC B N-RS-G7-4-40UNC-B 1 piece

Catalog number: N-RS-G7-4-40UNC-B Features: ●Roll tap suitable for thread machining of non-ferrous metals (aluminum castings, aluminum die castings, brass, etc.). Applications: ●For blind hole machining. ●Workpiece: Aluminum rolled material, aluminum alloy castings, zinc alloy castings. Specifications: ●Accuracy: G7 ●Accuracy notation: G class ●Nominal size: No.4 ●Thread length (mm): 9 ●Total length (mm): 46 ●Shank diameter (mm): 4 ●Shank square section (mm): 3.2 ●Pilot hole diameter (mm): 2.60 ●Number of threads: 40 ●Number of engaging threads: 2 ●Machining thread: Unified thread ●Surface treatment: Nitriding treatment ●Neck length (mm): 14 ●Shank length: 25mm ●Length of shank square section: 6mm Material/Finish: ●High-speed tool steel (HSS)