The Electrical drill was invented in 1889 in Melbourne Australia. The drill is a tool which is used to create a hole. Generally, it is used to create a hole in hard substance. The drill has two different actions that are rotary action and hammering action. So, the hole which is been created with the help of the drill is through its rotary or hammering action. They typically look like a handgun, with a trigger type button. They are also used for pouring screws and are often provided with a hammer action which makes them capable of being used as masonry drills. The screw guns or electric screwdrivers are generally suitably modified drills. These kinds of drills have a motor which contains brushes. The authentic design works with a single forward drill and have a very simple on-off action of the button; they can work on both, AC or DC power.
There are different kinds of drills which are available in the market. Today?s speed drills contain solid state phase control circuits that limit their use to AC power only. As trend and technology is increasing day by day, the electronics now give them changeable speed, reversibility and torque control. The following are some types of drills available in the market.
The hammer drill is specially made up with an exception that, it is provided with a hammer action for drilling stonework. The extra benefit in hammer drill is that the hammer stroke may be engaged or disengaged as per the requirement.
The rotary drill which is also known as rotor hammer drill is an electronic which is generally used for drilling holes in stones. This difference between rotary drill and hammer drill is that, through rotary drill hammer action cannot be performed it is just made with an idea of creating holes in stones. Except this each and every feature of hammer drill and rotary drills are same.
The cordless drill is a sort of electric drill which has an inbuilt battery which you can recharge. Mostly they are available in hammer drill configuration and they also have a grip feature, so that you can use for driving screws.
A drill press which is also known through several names like pedestal drill, pillar drill, or bench drill, this are always fixed on the floor or the workbench. The drill press has a base, pillar, table, spindle and a drill head it is generally driven with the help of an induction motor.
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Author: Victor Nunn