Made of Ten but Two We Make Riddle

Made of Ten but Two We Make Riddle is a very tricky riddle and here is the correct answer.

Riddle: Made of ten but two we make,
when assembled others quake,
five apart and we are weak,
five together havoc wreak.
What are we?

Answer: The answer to “Made of Ten but Two We Make Riddle” is “Fist.”