'Implement' in the Bible

"Whoever uses an iron implement to kill someone is to be adjudged a murderer, and that murderer is certainly to be put to death.

Furthermore, whoever uses a stone implement to kill someone is to be adjudged a murderer, and that murderer is certainly to be put to death.

Also, whoever uses a wooden implement to kill someone with it is to be adjudged a murderer, and that murderer is certainly to be put to death.