Oldschool rock crab killers?

Does anybody know of any rock crab killer scripts for oldschool runescape that are free, not autofighters where you choose the colour of your monster and enter in the name. A script that is specifically for killing rock crabs? I have looked on a few script repositorys of different bots have not seen any rock crab killers.

Thanks in advance.

 

Tribot definitely has one try checking there. It is not free though

 

Thank you, I am looking for a free one though. I also should have noted that i the first post.