Yamawa Spiral Tap SP P3 1-3/8-8UN SP-P3-1-3/8-8UN 1 piece

Catalog number: SP-P3-1-3/8-8UN Features: ●The twisted grooves eject small, curled, continuous chips to the rear and prevent chip clogging, making it ideal for blind hole machining. ●Excellent cutting performance, making it ideal for threading sticky work materials and plastics. ●Taps bite easily. ●Also capable of intermittent cutting of pilot holes with keyways. ●Blade strength is inferior to HT, so the HT shape is more suitable for high hardness materials. Applications: ●For blind hole machining. ●Work material: Low carbon steel, medium carbon steel, high carbon steel. Specifications: ● Precision: P3 ● Precision notation: P grade ● Nominal dimensions: UN1 3/8 ● Thread length (mm): 52 ● Overall length (mm): 155 ● Shank diameter (mm): 28 ● Square shank section (mm): 21 ● Counterbore diameter (mm): 32.0 ● Number of threads: 8 ● Number of engaging threads: 2.5 threads ● Machined thread: Unified thread ● Surface treatment: Non-coated ● Number of grooves: 4 ● Shank length: 71 mm ● Length of square shank section: 24 mm Material/Finish: ● High-speed tool steel (HSS)