Yamawa Z-PRO Premium Thread Mill PRML 8.0U20 PRML-8.0U20 1 piece

Catalog number: PRML-8.0U20 Features: * A thread processing tool that utilizes the "Helkari feed" function. One tool can process female threads of different diameters as long as the pitch is the same. * An oil hole is used for internal lubrication, allowing stable female threads to be created even in blind holes. * A unique blade shape that reduces cutting resistance allows for the processing of good female threads. Uses: ●Cutting material: tempered steel (35-45HRC), tempered steel (25-35HRC), cast iron, ductile cast iron, alloy steel, high carbon steel, medium carbon steel, low carbon steel Specifications: ●Nominal size: M8 ●Number of teeth: 20 ●Blade diameter (mm): 8 ●Blade length (mm): 3.8 ●Total length (mm): 80 ●Number of blades (pieces): 4 ●Shank diameter (mm): 8 ●Neck length (mm): 27.4 ●Surface treatment: TiALN coating ●Minimum machined internal thread (Dmin): 7/16 ●Thread type: Unified thread ●Minimum machined hole diameter: 7/16 ●Thread type: Unified thread ●Maximum thread length: 25.4 Material/Finish: ●Ultra-fine grain carbide (HF)