Note: It may be necessary to drill clearance holes, twice the diameter of the screw, through the probe to accommodate projecting mounting screws.
注：可能有必要钻一个小孔，直径为螺钉的两倍大，用探头来接触突出的安装螺钉。
2
Ring-Mounting machine is mainly used for mounting the reference-positioning ring to the tool and removing the ring from it on numerical controlled drill, fraise machine for etched circuit card.