Multi-functional bit & connect-disconnect coupling used therewith

A bit comprising

• a drill element,
• a driver element, and
• a plate member having a cutting end,
• said plate member, driver element, and drill element being assembled together with the plate member being intermediate the driver element and the drill element and said cutting end being adjacent to the drill element,
• said drill element having an elongated groove therein and the plate member fits snugly therein,
• said plate member having at one end a pointed tip and at an opposed end a cut-a-way section, an end portion of said driver element being received in the cut-a-way section, and
• wherein the drill element has a diameter that is greater than a diameter of driver element and there is a cavity in one end of the drill element into which the driver element fits snugly.

A bit comprising

• a drill element,
• a driver element, and
• a plate member having cutting end,
• said plate member, driver element, and drill element being assembled together with the plate member being intermediate the driver element and the drill element and said cutting end being adjacent to the drill element where an end of one of the elements has a cavity therein and the other element has an end that fits snugly within said cavity.

A bit comprising

• a drill element,
• a driver element, and
• a plate member having cutting end,
• said plate member, driver element, and drill element being assembled together with the plate member being intermediate the driver element and the drill element and said cutting end being adjacent to the drill element,
• said plate member, driver element, and drill element being separate components which are axially aligned and fixedly connected together, and
• one of said elements has an elongated axial groove therein and the plate member fits snugly therein, and
• an end of one of the elements has a cavity therein and the other element has an end that fits snugly within said cavity.

A bit comprising

• a driver element and drill element that are axially aligned,
• a plate member intermediate said driver element and drill element, said plate member having a cutting edge for forming a countersink,
• said driver element including an elongated body having at a first end a driver head and at a second end a cavity,
• said drill element including an elongated body having a first end portion and a second end portion including a drill segment, said first end portion being inserted into the cavity in the driver element,
• said plate member, driver element, and drill element being three separate components that are fixedly connected together.

A bit comprising

• a driver element and drill element that are axially aligned,
• a plate member intermediate said driver element and drill element, said plate member having a cutting edge for forming a countersink,
• said drill element including an elongated body having at a first end portion a drill tip and at a second end portion a cavity,
• said driver element including an elongated body having a first end with a driver head and a second end inserted into the cavity in the drill element,
• said plate member, driver element, and drill element being three separate components that are fixedly connected together.

A bit comprising

• a driver element including
• an elongated body having a longitudinal axis,
• a driver head at a first end of the driver element body,
• a cavity at a second end of the driver element body that is axially aligned with the longitudinal axis of the driver element body and open at the second end of the driver element body, and
• a groove in the second end of the driver element body intersecting the cavity,
• a drill element including
• an elongated body,
• a first end portion, and
• a second end portion including a drill segment, and
• a plate member having
• a first end, and
• a second end that is tapered and has a longitudinal slot therein,
• said driver element, drill element, and slot in the plate member being axially aligned along the longitudinal axis of the driver element body, with the first end portion of the drill element being received in the slot in the plate member and being at least partially inserted into the cavity, and the first end of the plate member being at least partially inserted into the groove.

A bit comprising

• a driver element including
• an elongated body having a longitudinal axis and a predetermined diameter, a driver head at a first end of the driver element body, a cavity at a second end of the driver element body axially aligned with the longitudinal axis of the driver element body and open at the second end of the driver element body and having a predetermined diameter smaller than the diameter of the driver element body, and
• a groove in the second end of the driver element body intersecting the cavity and having a predetermined width,
• a drill element including
• an elongated body,
• a first end portion with a diameter slightly larger than said diameter of the cavity, and
• a second end portion including a drill segment, and
• a plate member having
• a first end,
• a second end that is tapered, and
• a predetermined width slightly larger than the predetermined width of the groove in the driver element body,
• said driver element and drill element being axially aligned, with the first end portion of the drill element being at least partially inserted into the cavity, and the first end of the plate member being at least partially inserted into the groove.