Advantages: 1. Standard: DIN338,Website:://.delicoil.com, DIN1897, DIN340; 1/16"-1" for ASME, screw machine, taper length.2. Steel material: M2(6542), M35, M42, HSS 9341, HSS 4341, HSS 42413. Process: Fully ground, milled, polished, roll forged4. Point angel: 118degree, 118degree split point, 135degree split point5. Surfce finishing: Bright finished, black oxide, Tin-coated, black