产品特性：

1、加长工作半径，适合多工件攻牙，效率更高。
2、设备操作简便，维护方便，无特殊工作环境。
3、丝锥扭力保护筒夹，不易断丝锥。

FEATURE:

1、The lengthen working radius, suits the multi obeject to attack the tooth, the efficiency is higher.
2、The equipment operation is simple, maintains conveniently, not special working conditions
3、The screw tap torsion protection collet, is not easy to break the screw tap