1. Cross clamp is used two mutually perpendicular feeding mechanisms, it can be moved in the direction of X and Y at the same time, and it can be rotated 360° with a swivel base.

2. When it is compatille with berch-type drilling machine, it can drill several holes and mill several stots. on the same face once time by the way of hand-operated feeding in two mutually perpendicular directions It can be used as an attach-

ment for milling machine and grinding machine or as a tool used only."