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

Catalog number: SP-P3-1-1/8-8UN Features: ●The groove is twisted, so small curled chips are discharged backwards and chip clogging does not occur, making it ideal for blind hole machining. ●It has a sharp cutting edge, making it ideal for threading sticky work materials and plastics. ●Tap is easy to bite into. ●Intermittent cutting of pilot holes with keyways is also possible. ●The 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 1/8 ● Thread length (mm): 46 ● Overall length (mm): 135 ● Shank diameter (mm): 23 ● Square shank section (mm): 17 ● Counterbore diameter (mm): 25.6 ● 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: 62 mm ● Length of square shank section: 20 mm Material/Finish: ● High-speed tool steel (HSS)