Yamawa Z-PRO Hybrid Value Spiral Tap for Steel HVSP P4 1-3/8-12UNF HVSP-P4-1-3/8-12UNF 1 piece

Catalog number: HVSP-P4-1-3/8-12UNF Features: ● Unique groove shape and cutting angle improve chip removal. ● Improved heel cut performance to accurately cut chips deep inside the thread and eliminate remaining chips. ● No remaining chips significantly reduces chipping problems at the cutting edge, which can easily occur when reversing. ● A special shape is used for the thread, leaving several complete threads and removing half of the subsequent threads, enhancing chipping prevention effect at the complete thread. Applications: ● For blind hole processing. ● Workpiece: Low carbon steel, medium carbon steel, high carbon steel, alloy steel, stainless steel. Specifications: ● Precision: P4 ● Precision notation: P grade ● Nominal dimensions: UNF1 3/8 ● Thread length (mm): 52 ● Overall length (mm): 200 ● Shank diameter (mm): 28 ● Square shank section (mm): 21 ● Counterbore diameter (mm): 33.0 ● Number of threads: 12 ● Number of engaging threads: 2.5 threads ● Machined thread: Unified thread ● Surface treatment: Oxidation treatment ● Number of grooves: 4 ● Length of square shank section: 24 mm ● Shank length: 102 mm Material/Finish: ● High-speed tool steel (HSS)