Answer :
Final answer:
A hammer drill is primarily used for drilling into hard materials such as concrete, brick, and stone, rather than softer materials like cast iron or hardwood. Neither option provided is suitable for hammer drilling techniques. Hammer drills are designed for a specific range of hard materials.
Explanation:
Materials Drilled with a Hammer Drill
A hammer drill is a powerful tool designed for drilling into hard materials. The primary types of materials that can be effectively drilled using a hammer drill include:
- Concrete
- Brick
- Stone
When it comes to the options given in your question, a hammer drill would typically not be used on cast iron or hardwood. Cast iron is a dense material that is usually drilled using specialized bits and machines, while hardwood can be drilled using standard drill or auger bits, without the need for the hammer action that a hammer drill provides. Thus, neither of these materials is ideal for a hammer drill's capabilities.
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