finisher
Definitions
A person or thing that completes a task or process.
A worker who performs the final stages of manufacturing, such as polishing, painting, or assembling.
A decisive move or technique used to end a contest or match.
Examples
The marathon runner was a strong finisher, sprinting past his competitors in the final hundred meters.
He is known as a clinical finisher who rarely misses a goal when he is inside the penalty box.