HSS Cold Form Tap For Tapping Machine1. Material: HSS/HSSE/M42 Co8%, imported from Germany2. Stocked Size: M1-M163. Thread Type: M(Metric), UNC, UNF,W4. Surface Treatment: Bright, TIN, TICN, Black Oxide5. Standard: JIS, DIN, ANSI, ISO, GB6. Product Advantage:a)No chips produceb) Stronger threadc)...