Hot tapping drill apparatus

Hot tapping drill apparatus comprising:

• a housing;
• a rotation shaft arranged within the housing and comprising at least two secondary rotation shafts telescopically arranged and complementarily keyed to allow transmission of torque, one end of the rotation shaft extending outside the housing and configured to operatively receive a drill bit;
• a translation shaft arranged within the housing about the rotation shaft and comprising at least two secondary translation shafts telescopically arranged via a complementary threaded engagement to allow for telescopic translation of the secondary translation shafts due to relative threaded rotation;
• a link assembly linking the rotation and translation shafts to allow independent rotation of the rotation shaft while coupling translation of the shafts, the link assembly comprising a collar defined proximate the drill bit end of the rotation shaft, the collar operatively complementarily captured within a guide bearing on the translation shaft, so that translation of the translation shaft telescopes the rotation shaft while the rotation shaft is able to rotate freely;
• a first actuator configured to operatively actuate an end of the rotation shaft distal from the drill bit end to rotate the rotation shaft;
• and
• a second actuator configured to operatively actuate the translation shaft at an end thereof distal from the link assembly, wherein rotation of the drill bit is operatively facilitated via the rotation shaft and translation of the drill bit relative to the housing is operatively facilitated via the translation shaft, both rotation and translation shafts actuatable at the end distal from the drill bit.