similar fashion to drill a third hole in the bone parallel to the first and second holes in this fashion multiple parallel holes can be drilled without the alignment errors customary in conventional practice the device is compact contains few components and is especially suited for the narrow confines within a patient 39 s mouth in dental practice the apparatus can operate from a pin such as pin 10 previously set within the patient 39 s bone or can be used as a template to guide the angle of the first hole before pin 10 is set in dentistry the apparatus is equally adaptable to either side of a patient 39 s mouth and to the upper and lower bone structures within a patient 39 s mouth the invention can be attached to existing implants or other structures within the patient 39 s mouth as used herein references to forming a hole in the bone of a patient are equally to the act and process of forming a hole in an existing implant or other structure within the patient 39 s mouth one innovative benefit of the invention provides the same consistent anchor in bone implant or other stable structure within the mouth these features of the invention minimize the work within the mouth and provide less trauma.