Drill bit assembly having aligned features

A drill bit assembly comprising:

• a bit head having a cutting end, an opposite connecting end with an engagement section, and a feature within a wall of the bit head and facing the connecting end;
• a pin body having a connecting end with an engagement section and a feature within a wall of the pin body and facing the connecting end, the pin body and bit head connecting ends positioned such that the bit head and pin body engagement sections overlap with a gap therebetween and the bit head and pin body features are aligned;
• and
• an injectable gap joint filling the gap such that the bit head and pin body are mechanically coupled together at their connecting ends.

A method of manufacturing a drill bit assembly having a bit head and a pin body;

• the bit head comprising a cutting end and an opposite connecting end with an engagement section;
• the pin body comprising a tubular body with an axial bore therethrough and a connecting end with an engagement section;
• and wherein the bit head and pin body comprise two mating pieces each with a mating end and a feature within a well thereof;
• the method comprising:
• (a) positioning the engagement sections of the pin body and the bit head such that the pin body and the bit head are connected at their connecting ends;
• (b) positioning the mating ends of the two pieces of the pin body or the bit head or both such that a gap is formed between the mating ends, and the features in each mating end are aligned;
• (b) injecting a connecting material in liquid form between the mating ends and into the gap;
• and
• (c) solidifying the connecting material such that the two pieces of the pin body or bit head or both are mechanically coupled together at their mating ends and their features are securely aligned.

A drill bit assembly comprising

• a bit head having a cutting end and an opposite connecting end with an engagement section;
• a pin body having a connecting end with an engagement section, the pin body and bit head connecting ends positioned such that the bit head and pin body engagement sections overlap and the pin body and bit head are connected at their connecting ends;
• wherein the bit head and pin body comprise two mating pieces each with a mating end and a feature within a well thereof, wherein the mating ends are positioned such that a gap is formed therebetween and the features are aligned;
• and,
• an injectable gap joint filling the gap such that the two pieces of the bit head or pin body or both are mechanically coupled together at their mating ends.