YAMAWA Stainless Steel Spiral Tap SU-SP P1 4-40UNC SU-SP-P1-4-40UNC 1 Piece

Catalog number: SU-SP-P1-4-40UNC Features: ●Ideal for blind hole machining in materials such as stainless steel, which is extremely sticky due to work hardening, as well as chromium steel and molybdenum steel. ●Optimized design of the thread reduces the machining burden on each cutting edge. ●Reduced cutting resistance increases tool life. ●Stable chip discharge achieves good finish surface. ●Improved strength increases tool life. ●Can be used in both synchronous and asynchronous modes. Applications: ●For blind hole machining. ●Workpiece material: Low carbon steel, medium carbon steel, high carbon steel, alloy steel, stainless steel. Specifications: ● Precision: P1 ● Precision notation: P grade ● Nominal size: No.4 ● Thread length (mm): 9 ● Total length (mm): 46 ● Shank diameter (mm): 4 ● Square shank section (mm): 3.2 ● Counterbore diameter (mm): 2.33 ● Number of threads: 40 ● Number of engaging threads: 2.5 threads ● Machined thread: Unified thread ● Surface treatment: Oxidation treatment ● Neck length (mm): 14 ● Number of grooves: 2 ● Number of grooves: 2 ● Shank length: 25mm ● Length of square shank section: 6mm ● Neck length: 14mm Material/Finish: ● High-speed tool steel (HSS)