OSG Tap 18710 EX-SFT-STD-W1/4-20 1 piece

Catalog number: EX-SFT-STD-W1/4-20 Features: ●Used for blind holes, suitable for workpieces with continuous coil-shaped chips. Applications: ●For blind hole machining. ●Workpieces: alloy steel, medium carbon steel, ductile cast iron, copper, brass, brass castings, bronze, rolled aluminum, aluminum alloy castings, magnesium alloy castings, zinc alloy castings, thermoplastic plastics. Specifications: ●Accuracy: OH2 ●Accuracy notation: STD ●Nominal dimensions: W1/4 ●Thread length (mm): 19 ●Total length (mm): 62 ●Shank diameter (mm): 6 ●Shank square section (mm): 4.5 ●Pilot hole diameter (mm): 5.1 ●Number of threads: 20 ●Number of engaging threads: 2.5 threads ●Machining thread: Whitworth thread ●Surface treatment: Non-coated ●Tap grade: OH grade Material/Finish: ●High speed steel (HSS-E)