How Do Hammer Drills Work


A hammer drill is a drill that has a hammering mechanism inside it, is used for making holes on challenging facets, and this is achieved by combining rotary drill motion and hammer thrusts to penetrate rigid materials. A hammer drill is also called an impact drill or rotary hammer. It can be used personally or professionally; either way, it gives excellent results.

Sometimes, we need to make holes on hard surfaces to fix objects on the walls, hammer drills with the help of nails can be used to improve things like frames, hangers, and so on to a wall.

Hammer drills are also used for industrial or construction work such as attaching, coupling, etc. A high-quality hammer drill is power-packed and can bore holes in ceramic tiles, asphalt, cement, and other hard surfaces. Hammer drills can withstand more wear and tear from the challenging facet they drill through.

Hammer Drill Background and Hammering Mechanism

Hammer drills have a strong hammering mechanism; the two sets of toothed wheels routinely interact with each other to hammer while rotating the drill bit. The hammer drill creates a hammer-like movement when in use. The hammer drill is used to make holes in challenging facets, including cement, tiles, concrete, etc. Hammer drills mostly have two functions; you can use the tool with both the drilling and hammering motion. You can also turn off the hammering motion and use it as a regular drill.

Types of Hammer Drills

There are two significant types of hammer drills known as;

  • Regular hammer drills
  • Rotary hammers

Although these are both kinds of hammer drills, they perform slightly different functions, which you will find in this section.

Type 1- Regular Hammer Drills

Basically, what differentiates a rotary hammer from a regular hammer drill is that a standard drill spins, whereas a rotary hammer spins and hammers at the same time. The regular hammer drill is most suitable for DIY and personal use. Regular hammer drills come in two subsets, “Corded hammer drill,” which is plugged into a constant source of power. The second subset is classified as a “Cordless hammer drill,” which makes use of an internal battery and has to be recharged regularly. Although a cordless hammer drill is quite portable, it cannot deliver as much power for a more extended period that a corded hammer drill can provide.

Type 2- Rotary Hammers

Rotary hammers are more heavy duty and powerful corded hammer drills. It possesses the regular spinning bit of a power drill. It uses a large piston to produce its power; they use an electro-pneumatic power system. Although it is a power-packed tool, it’s also more massive and has a heavier weight difference and is mostly used for industrial or construction purposes.

As you decide which hammer drill you need to bore holes, also check what are Hammer Drills used for?


Hammer drills are one of the most flexible and useful tools. Although you may not use the hammer drill in your day to day activities, it will be very useful whenever you need to bore a hole through a hard surface. It is power-packed and can withstand wear and tear. It is an essential tool to own in your toolbox.