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There are two different tools used for masonry; a Rotary Hammer and a Hammer Drill. One rotates and one vibrates. But when should one use which?

So What is the difference between a Rotary Hammer and a Hammer drill?

Hammer drills are small and shaped like your household hand drill and made for light work. It is essentially a drill with a ratchet mechanism that vibrates the bit at a high speed chipping away at the masonry substrate.

Much the same way, a Rotary hammer, is a hammer with a larger motor than a drill which beats on the end of the bit in a hammering motion. This hammering action transfers energy from the bit to the hard carbide chipping away at the concrete or stone.

With Rotary hammers, the bit is both rotated and hammered. The hammering actions creates the hole while the debris is pulled out through the rotations of the drill.

So which tool is the best option? The Rotary Hammer or the Hammer Drill?

It all revolves around the purposes.

A Hammer Drill is used:

* For holes 3/8″ or smaller

* Softer jobs, basically masonry other than reinforced concrete or stone

* Anchors or injections

When to use a Rotary Hammer:

* stone or reinforced concrete

* With large jobs

* broader cavity

Hammer drills are smaller in size and usually more affordable.

So, unless you want to spend the extra money use the Hammer Drills on the small jobs and save the Rotary hammers for the big jobs.

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