Tool retention system with external locking mechanism

A tip assembly, comprising:

• an adapter configured to be attached to a work implement, the adapter including:
• a nose;
• and
• a retainer pin opening extending through the nose;
• a ground engaging tip configured to be attached to the nose, the tip including:
• a nose cavity configured to receive the nose, the nose cavity defining a pair of side walls spaced apart from each other;
• a first transverse hole disposed in a first one of the side walls;
• and
• a second transverse hole disposed in a second one of the side walls;
• and
• a retention mechanism, including:
• a pin configured to be inserted into the retainer pin opening in the nose;
• a first spring clip configured to be inserted into the first transverse hole;
• a second spring clip configured to be inserted into the second transverse hole;
• a first retainer configured for insertion into the first transverse hole, the first retainer configured to engage with the pin;
• and
• a second retainer configured for insertion into the second transverse hole, the second retainer configured to engage with the pin;
• wherein each of the first retainer and the second retainer includes a retainer body extending from a first axial end to a second axial end and at least one tab extending radially from the retainer body at the first axial end, the at least one tab being configured to engage with a thread in a respective one of the first transverse hole or the second transverse hole.

A retention mechanism, comprising:

• a pin;
• a retainer, including:
• a retainer body extending from a first axial end to a second axial end;
• at least one tab extending radially from the retainer body at the first axial end;
• at least one detent cutout disposed on an outer surface of the retainer body;
• and
• an axial cavity at the second axial end configured to receive one end of the pin;
• and
• a spring clip, including:
• at least one leg;
• a base portion extending perpendicularly from one edge of the at least one leg;
• a pair of flexible arms extending from opposite ends of the base portion and configured to engage with the outer surface of the retainer body;
• and
• a detent portion attached to a distal end of each of the flexible arms, wherein the detent portion is configured to engage with the at least one detent cutout of the retainer;
• wherein the at least one leg is configured to extend radially outward from the base portion.