barrel 32 as best shown in fig9 and 10 cone 34 can now be threadably installed onto external thread 66 of barrel 32 and subsequently locking screw 35 can be installed to ensure that cone 34 does not rotate or turn on external thread 66 but rather remains in a stationary position once cone 34 is in place steel ball 82 is placed into a counter sink 81 located in bit chuck 80 and collar 36 is threadably attached to chuck end 39 until tapered surface 84 makes contact with steel ball 82 this completes the assembly of multi bit driver 30 as best shown in fig1 and 14 multi bit driver 30 is utilized as follows with all of the six bit assemblies 100 installed into barrel 32 and nested equally around the interior circumference of barrel 32 tool bit 52 can be selected from retracted position 93 for use by slidably urging actuator knob 72 longitudinally along actuator channel 70 as shown in fig1 as actuator knob 72 is moved with simple finger pressure longitudinally along actuator channel 70 such that head end 112 and or driver head 104 of tool bit 52 makes contact with guide surface 110 of cone 34 tool bit 52 is guided into and enters chuck receiving channel 89 as actuator knob 72 continues to be urged upwardly along actuator channel 70 tool bit 52 slidably moves along guide surface 110 thereby flexing bit extension 54 as tool bit 52 moves closer to chuck receiving channel 89 finally tool bit 52 enters chuck receiving channel and is aligned with longitudinal axis 99 of housing 31.