Rotary Hammer vs Hammer Drill

Concrete drilling tool selection has gotten complicated with all the mechanism differences, power levels, and application claims flying around. As someone who has drilled through every concrete type, I learned everything there is to know about choosing the right tool. Today, I will share it all with you.

Key Differences

Probably should have led with this section, honestly—hammer drills use a cam mechanism while rotary hammers use a piston-driven system.

Hammer Drill

• Lighter and more versatile
• Good for smaller holes in concrete
• Also works as regular drill
• Less expensive

Rotary Hammer

• More powerful hammer action
• Better for larger holes and heavy-duty work
• Less user fatigue on big jobs
• SDS chuck for quick bit changes

When to Choose Each

• Hammer Drill: Light masonry, occasional concrete work
• Rotary Hammer: Frequent concrete drilling, larger holes, demolition