Thread grinding is the main method of finishing the thread of hardened workpiece by thread grinding machine.Precision lead (screw pitch) precision, high grade surface quality can be obtained by thread grinding, and thread fatigue and working life can be improved.Thread grinding is mainly used to process precision lead screw, ball screw, ball nut, various thread cutting tools and measuring tools, such as thread milling cutter, chiseling cutter, thread broach, tap, die, roll, thread gauge, etc.

Double bevel wheel（NO:4）     mm