Patent ID: 7819613

Claim:
A self-tapping insert for disposing within a smooth bore, said self-tapping insert comprising: a cylindrical body having a top, a bottom, an interior portion and an exterior portion, the cylindrical body defining a central axis; the exterior portion comprising, in relative order from the bottom of the cylindrical body, a pilot section, a plurality of cutting threads, the cutting threads comprising a leading edge and a trailing edge for cutting insert locking threads in the smooth bore, and a plurality of engagement threads, the engagement threads sized to engage the insert locking threads; the pilot section having a diameter and a first length, the diameter sized to penetrate the smooth bore and the first length configured to maintain the central axis of the self-tapping insert in alignment with the longitudinal axis of the smooth bore; a removable pilot extension member extending forward of the pilot section; and driving means for driving the cylindrical body into the smooth bore.