Abstract: A drill bit changer system for a drill rig includes a drill bit storage holder rotatably and pivotally mounted to the drill rig and a plurality of bit holder assemblies located within the drill bit storage holder. Each bit holder assembly includes a receptacle, wherein the plurality of bit holder assemblies are arranged to receive a drill bit in each receptacle. The drill bit storage holder is pivotally connected between a stowed position and an engaged position in which the drill bit is positioned at a drill string of the drill rig, wherein the drill bit storage holder is further indexable to present a respective receptacle at the drill string such that the drill bit is added or removed from the drill string. A method of changing a drill bit is also disclosed.

Abstract: A drill bit changer system for a drill rig including a drill bit storage holder assembly arranged to be movable mounted to the drill rig. The drill bit assembly includes a rotatable drill bit storage holder, a plurality of bit holder receptacles located within the drill bit storage holder, and a plurality of drill bit adaptor assemblies disposed in the bit holder receptacles. Each adaptor assembly includes an adaptor having opposed ends, one end of the adaptor being arranged to engage a drill string of the drill rig and another end of the adaptor being engageable with a drill bit, wherein the adaptor has a rounded section disposed between the opposed ends, the rounded section being engageable by an adaptor arm of the drill bit holder assembly to engage and disengage the drill bit adaptor assembly from the drill string. A method of changing a drill bit is also disclosed.