HAMMERS AND MALLETS

Hammers  And mallets are used to force objects together or apart. The shape of the back part of the hammer head (called the peen) usually determines the name.

For example, a ball-peen hammer has a rounded end like a ball and it is used to straighten oil pans and valve covers, using the hammer head, and for shaping metal, using the ball peen.

A typical ball-peen hammer.

Mallets  Are a type of hammer with a large striking surface, which allows the tech to exert force over a larger area.

This helps avoid damage to parts or components.

Mallets are made from a variety of materials including rubber, plastic, or wood.

A rubber mallet used to deliver a force to an object without harming the surface.

A shot-filled plastic hammer is called a dead-blow hammer. The small lead balls (shot) inside a plastic head prevent bouncing of the hammer off of the object when struck.

A dead-blow hammer that was left outside in freezing weather. The plastic covering was damaged, which destroyed this hammer. The lead shot is encased in the metal housing and then covered.

A hammer is usually sized by the weight of the head of the hammer and the length of the handle. For example, a commonly used ball-peen hammer has an 8-ounce head with an 11-inch handle.

NOTE: A claw hammer has a claw used to remove nails and is not used for automotive service.

Safe Use of Hammers and Mallets  All mallets and hammers should be cleaned after use and not exposed to extreme temperatures.

Never use a hammer or mallet that is damaged in any way.

Always use caution to avoid doing damage to components and surrounding areas.