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weights for specific types of work. Most Hammers are classed by weight. Two of the most common. ◦ Claw hammer. ◦ Ball peen hammer.
Typology: Exams
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Objectives of this Lesson
You must always think about safety Before you use a tool you should know how it works and some of the possible dangers of using it the wrong way Read the owner and operator manual Make certain tools are in good working order Never use a worn or damaged tool
Always protect yourself when you are using tools by wearing appropriate personal protective equipment (PPE), such as safety gloves and eye protection
The claw hammer ◦ Has a steel head ◦ Has a wood, steel, or fiberglass handle ◦ Used to drive nails, wedges, and dowels ◦ Use the claw to pull out nails out of wood Bell-faced claw hammer ◦ A skilled worker can use this hammer to drive the nail head flush without damaging the surface of the work
Use the proper hammer for the job Grip the handle of the hammer Hold the end of the handle even with the edge of the palm Rest the face of the hammer on the surface to be struck Draw the hammer back and give it a few light taps to start Hold the hammer level with the surface and strike it squarely Deliver the blow with your wrist, elbow and your shoulder
Has a flat face for striking and a rounded face for aligning brackets Used with chisels and punches In welding operations used to reduce stress in the weld by peening or the joint as it cools Classed by weight-16, 22, 32 oz Strongest and best hammers are drop forged ◦ Do not use a hammer with a cast head ◦ Never use the a hammer to strike the head of another hammer
The hammer is designed to produce a certain amount of force on the object it strikes If you hold the hammer incorrectly you cancel out the design factor The distance between your hand and the hammer head affects the force you use to drive a nail Make it easy hold the hammer probably
Mallets generally have short handles The heads are made of softer materials such as plastic, wood or rubber Used to drive another tool with great precision but less force Mallet is the best tool when it is important to avoid damaging the object you are striking
Double-face Long-handled Double-face Short-handled Crosspeen
Wear the proper PPE ◦ Safety glasses ◦ golves Inspect the sledgehammer Be sure no one is nearby Hold the sledgehammer in both hands Stand directly in front of the target Lift the sledgehammer straight up above the target Set the head of the sledgehammer on the target Begin delivering short blows to the target and gradually increase the length and force of stroke
The most commonly used hammer is _____ ◦ A claw This is a heavy duty used to drive post or other large stakes is a ◦ Sledge hammer Safest hammers are those with heads that are ◦ Alloy and drop forged The claw of the claw hammer is for ◦ Pulling nails The _____ hammer can drive the nail head flush without damaging the work ◦ Bell-faced claw hammer The rounded face of the ball peen hammer is used for ◦ Aligning brackets
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