Hammer Drill

Use a hammer drill if you need to drill through tough materials such as brick or concrete. HomElectrical offers rotary and regular hammer drills and air hammers to fit all your heavy-duty drilling needs.

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What are the uses of hammer drills?

DIYers and construction workers alike use hammer drills to pulverize holes in concrete, marble, brick, granite, and other tough materials that a regular drill cannot get through. These specialized drills come equipped with a hammering mechanism that pounds the drill bit forward, and recurring blows happen in the direction of the hole being drilled. Some hammer drills have the option to turn off the hammer function and act as a regular drill, which you can then use on softer materials such as cutting metal and wood.

What are the types of hammer drills?

There are two main types of hammer drills: rotary and regular.
  • A regular hammer drill is most commonly used by DIYers for home construction. They easily and quickly pulverize tough materials.
  • Rotary hammers are more heavy duty and used for professional construction work. They have variable speeds, more blows per minute (bpm), and create larger holes than regular hammer drills. If you constantly drill holes 3/8 in or bigger, it is worth it to buy a rotary hammer drill.

How are hammer drills powered?

Just like with other power tools, hammer drills have electric and pneumatic, or air options. Use an air hammer if you know there is no electricity at your worksite. As long as you have a source of compressed air, you can use the pneumatic tool as much as you need to without charging anything.

Electric drills are divided into 2 options: corded and cordless.

Corded hammer drills:

  • useful at worksites where there is a constant power source
  • highest RPM and the most power
Lithium ion cordless hammer drills:
  • work well in tight spaces
  • most portable type
  • downsides: even 20 volt max batteries don’t last long and they are not as powerful as corded drills.

Rotary hammer drills use electro-pneumatic, or EP, power, which combines air and electricity. Electric power rotates the crank, which moves the drive piston. The compressed air creates a pressurized air cushion between the pistons.

What's the difference between a hammer drill and an impact driver?

Hammer drills and impact drivers, also known as impact drills, look very similar but perform very different jobs, so you want to make sure you are getting the exact tool you are looking for. Hammer drills are meant for creating holes, while impact drivers are meant for driving in or removing screws. You cannot use a hammer drill as an impact driver or vice versa, so make sure you have the right tool for the job.
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