OSG Spiral Tap HR Coating for Ni-Based Super Heat-Resistant Alloys (For Metric Threads) M8 Pitch 1.25mm Thread Length 22mm 3901422 WHR-NI-SFT-STD-M8X1.25 1 Piece

Catalog number: WHR-NI-SFT-STD-M8X1.25 Features: ● Long life and stable machining is possible for nickel-based alloys (40-45HRC) after aging treatment. Applications: ● For blind hole machining. ● Work material: Ni-based alloys, tempered steel (35-45HRC) Specifications: ● Precision: OH3 ● Precision notation: STD ● Nominal size: M8 ● Pitch (mm): 1.25 ● Thread length (mm): 22 ● Total length (mm): 70 ● Shank diameter (mm): 7 ● Shank square section (mm): 5.5 ● Pilot hole diameter (mm): 6.75 ● Number of engagement threads: 2.5 threads ● Machined thread: Metric thread ● Surface treatment: HR coating Material/Finish: ● Powdered high speed steel (CPM)