Hammer

A Hammer is a tool used for pounding nails. Different types of hammers include claw hammers (standard) and balpeen hammers. They are very effective when you need to pound two pieces of wood together, but let's face it... they also make excellent murder weapons!

In film

 * Friday the 13th Part 2: After discovering Deputy Winslow poking around inside of his private sanctuary, Jason Voorhees dispatched the nosy police officer by whacking him in the back of the skull with the claw end of a hammer.