Each hard-alloy drill bit designed with high toughness and sharpness, large space of drill bit chip removal and long service life, which are used for metal drill, deep drill and circuit board drill.
Factory Add: 68# ,HongXing Street, Zhengzhou High & New Technology Industries Development Zone.
Company Add: E Zone, 6 Floor, Boao Mansion, 44# West Zhongyuan Road,Zhengzhou, Henan, China.