Fourth Position Cross Drill With Inside Countersink Attachment

Cross drill attachments mounted with inside countersink are available for use in the third (1439-SA) or the forth (1440-SA) position. They can be used to drill a hold and then countersink or counterbore the opposite side of the hole. Cross drilling and countersinking are both actuated be the same cam. Both the third and fourth position cross drill and countersink attachments are independently motor driven and can be adjusted along the axis of the work. The work spindle must be stopped when using either of these attachments.