Question

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

Explanation:

A hammer - drill is designed for drilling hard, dense materials like concrete. Stainless steel, hardwood, and cast iron can be drilled with regular drills in most cases. Hammer - drills use a hammering action along with rotation to break up hard materials like concrete while drilling.

Answer:

C. concrete