Cordless Drill

cordless drill

A cordless drill is ideal to start with if you are new to DIY projects around your home, as they are light easy to use.
There are of course other types of drills on the market from electric hand drills, hand turn drills, stand-a-lone bench drills and floor-stand drills.
This post will provide information on cordless drills and their advantages and disadvantages.

What is a drill

  • A drill is a multi-purpose tool used to perform different tasks
  • They can be used for drilling holes in a variety of different materials such as wood, metal, plastic, tiles to inserting screws.
  • With the right accessories attached a drill can also be used to sand, buff, stir paint and strip paint and rust.


Parts of a drill

Drills are made up of different components, the purpose of each is discussed below.

cordless drill

Drill Handle

  • Is gripped whenever using the drill.
  • When the operator presses the start switch it activates the drill motor action.
  • When the start switch is released it stops the drill



  • Cordless drill motors range from 14.4 volts to 18-20 volts.


Variable Speed

  • A drill with a variable speed means the speed of the drill can be adjusted according to the task.
  • If drilling a hole in timber or metal the drill needs to work at high speed.
  • When inserting a screw, a slow speed is required to avoid stripping the screw head.


Forward and Reverse Switch

  • Move the switch to the “forward” position the drill bit turns clockwise and bores a hole into the material.
  • Move the switch to the “reverse” position the drill bit turns anti-clockwise and lifts the drill bit out of the hole.



The chuck is at the front end of drill where a drill bit is inserted and when tightened holds the drill bit in place.
Cordless drills do not require a special key to tighten and loosen a drill bit so are called “chuckless”
A drill’s chuck opening will come in one of two sizes – 3/8” or 1/2”. This is the maximum size a drill bit shaft will take when the chuck is fully open.

Hammer Switch

  • A hammer switch is usually located at the top of the drill.
  • Move the switch to hammer to drill holes into masonry or concrete using a special masonry drill bit.
  • When the “hammer” switch is activated the drill works with a hammering/vibration motion.
  • When the “hammer” switch is turned off the drill functions as a normal drill.


Rechargeable Battery

  • Cordless drill come with a rechargeable battery and recharging station.
  • Remove by pressing the switch at the back of the battery and slide out.
  • Insert into charging station to re-charge.
  • Recharging can take 1 – 2 hours depending on the brand and quality of the battery

The following You Tube video by April Wilkinson provides a good explanation on the different parts of a drill.

Advantages of a Cordless Drill

  • Cordless drill is that it is completely portable and can be taken and used anywhere.
  • Will function for hours before the battery needs re-charging.
  • Cordless drills are user friendly and are ideal for a newbie to begin their DIY projects with.
  • Comes with a charging station which needs to be plugged into an electrical power socket to re-charge the battery.
  • It is handy to have a spare battery already charged if using the drill for hours on end.


Disadvantages of a Cordless Drill

  • Cordless drill batteries need recharging.
  • If you do not carry a spare battery that is fully charged, you will have to wait until the battery is recharged.
  • Not capable of the same heavy duty work as an electric drill e.g. drilling into concrete, stainless steel.
  • Is more expensive to purchase than an electric drill


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