Answer :
Final answer:
A hammer drill is the type of power tool used to insert fasteners into concrete or steel.
Explanation:
The type of power tool used to insert fasteners into concrete or steel is a hammer drill. Hammer drills have a special drilling mechanism that applies a hammering action along with the rotary motion, allowing them to easily drill into hard materials like concrete. They typically have a heavy-duty chuck that can hold drill bits specially designed for drilling into concrete or steel.
