Islamic Interpretation of Dreams (Ibn-i Sirin):

(Cheat; Defraud; Swindle) In a dream, a chisel means using a tool to attain one’s goal, or using a helper, or it could represent someone who is forced to travel by unwarranted circumstances or without his consent.

A chisel in a dream also represents someone whose wounds do not heal easily because of his greed, inequity and craving for more.

A chisel in a dream also represents one’s assistant, or one’s penis, or his mouth.