Looking for a word to describe ability using physical objects. For example, someone who is particularly adept at using a computer, or nunchuks, or any physical object, could be said to have a lot of -----.
You are probably referring to manual ability or skills
Ability to use one’s hands efficiently in the performance of a specific task or operation. An individual with a high degree of manual skill is said to have a great deal of dexterity. For example, a juggler has a great deal of manual skill.
They have dexterity, or if they're good at fixing things you could say they are handy.
A person who has a natural understanding or ability to manipulate physical objects is said to have a mechanical skill