Question

what material is drilled with a hammer drill?
concrete
cast iron
stainless steel
hardwood

Explanation:

Hammer drills are designed for hard - dense materials like concrete. They use a hammering action along with rotation to break through tough surfaces. Cast iron, stainless steel, and hardwood can be drilled with regular drills, but concrete requires the special hammering function of a hammer drill.

Answer:

A. concrete