Haas Alarm: 255 (M) NO TOOL IN SPINDLE – There is an invalid tool number in the spindle entry of the Pocket-Tool table. The spindle entry cannot be 0 and must be listed in the body of the table. If there is no tool in the spindle, enter the number for an empty pocket into the spindle entry. If there is a tool number in the spindle entry, make sure that it is in the body of the table and that the pocket is empty.