448 Каталог KORLOY 2020 Инструмент и оснастка для станков по металлу Стр.D64

Каталог KORLOY 2020 Инструмент для станков по металлу Стр. D64 0448 Lab2u

Technical Information for Tap O Recommended drill diameter On 2nd class thread basis Straight tap & Spiral tap Thread size Drill diameter Min Recommended Max M3X0.5 2.459 2.5 2.599 M4X0.7 3.242 3.3 3.422 M5X0.8 4.134 4.2 4.334 M6X1.0 4.917 5.0 5.153 M8X1.25 6.647 6.8 6.912 M10X1.25 8.647 CO CO 8.912 M10X1.5 8.376 8.5 8.676 M12X1.0 10.917 11.0 11.153 M12X1.25 10.647 10.8 10.912 M12X1.5 10.376 10.5 10.676 Thread size Drill diameter Min Recommended Max M12X1.75 10.106 10.3 10.441 M14X1.5 12.376 12.5 12.676 M14X2.0 11.835 12.0 12.21 M16X1.5 14.376 14.5 14.676 M16X2.0 13.835 14.0 14.21 M18X1.5 16.376 16.5 16.676 M18X2.5 15.294 15.5 15.744 M20X1.5 18.376 18.5 18.676 M20X2.5 17.294 17.5 17.744 Roll tap Thread size Drill diameter Min Recommended Max M3X0.5 2.76 2.8 2.81 M4X0.7 3.65 3.7 3.7 M5X0.8 4.59 4.6 4.66 M6X1.0 5.48 5.5 5.57 M8X1.25 7.34 7.4 7.41 M10X1.25 9.34 9.4 9.41 Thread size Drill diameter Min Recommended Max M10X1.5 9.18 9.2 9.28 M12X1.0 11.48 11.5 11.57 M12X1.25 11.34 11.4 11.41 M12X1.5 11.18 11.2 11.28 M12X1.75 11.05 11.1 11.15 rate of threading engagement Pre-hole diameter = d - 2 x H x- 100 d: Major diameter H (Rate of threading engagement's Height): 0.541266P P: Pitch (mm) Recommended bottom hole diameters follow the JIS2 standard for a nut. (Nuts outside the JIS standard are excluded) Drill diameter = D - 0.0068 x P x 65 D: Nominal diameter P: Pitch (mm) 65 = 65% of the thread height Nut’s bottom hole diameters outside the JIS standard are only for reference. Pre-hole diameter = D1: Major diameter D2: Minor diameter a = 1/2 x (D1 - D2) h = Height of fundamental triangle Rate of threading engagement = a/h x 100 (%) J. Threading 64