Depth controllable and measurable medical driver devices and methods of use

A driving device comprising:

• a housing having a proximal end and a distal end;
• a motor contained within the housing;
• a gearbox connecting the motor to a working tool interchangeably connected via a coupler, wherein the motor turns the gearbox, the coupler and the working tool;
• a torque sensor configured to measure drilling torque at an output of the gearbox and convert the measured drilling torque into a torque measurement signal, wherein the drilling torque is in a direction opposite rotation of the working tool, wherein the gearbox has a gearbox torque in a direction opposite rotation of the working tool, and wherein the gearbox is held as a reference point such that the gearbox torque is excluded from the torque measurement signal;
• and
• a tool guide assembly coupled to the housing, the tool guide assembly comprising:
• a tool guide configured to surround at least a portion of the working tool;
• and
• a surface guide having a proximal region and a distal region, the distal region configured to couple to the tool guide and the proximal region configured to couple to the housing,
• wherein upon actuation, axial motion of the tool guide assembly towards the proximal end of the housing to a retracted state allows a length of the working tool to be driven into a target region of work.