Types of Drills

The Right Drill – as Important as The Right Drill Bit


Each drilling job will have its own unique requirements, and while the basic function of a drill is boring holes, there are many materials that they can be used to drill through. There are even some drills that can be used to fasten various materials together with the use of fasteners. Selecting the right type of drill for the job then becomes necessary if you are to get the results that you want. Before you can select the right drill for the job, you have to know about the different types of drills and which jobs they are best suited for. As would be expected, drills are offered with a extensive selection of performance features in areas such as power and capacity. Below are some common types of drills.

Corded drills

Without a doubt these top the list of most-used drill types. The power needed is assured with a connection to the main power supply. These drills often feature a pistol grip and can be converted to handle a wide variety of tasks, such as sanding. A typical build has a 90-degree angle, used by most industry and trade workers. Metal and wood are the materials commonly worked on using these drills.

Cordless drills

A very popular option when portability is desired, or simply for freedom of movement, a cordless drill is often the equipment of choice. Cordless drills are powered by rechargeable batteries. All the main functions of A/C cord-type drills are available with cordless drills, although it is a fact that certain demanding jobs can drain cordless drill batteries rapidly. To compensate for this, it is common for users to have a spare battery pack ready. This, of course, increases equipment costs, and there is also a wait time for recharging batteries. Typically, cordless drills have not had as much torque as corded drills, however the gap between them has been narrowed significantly – with more voltage resulting in more power, there are now cordless drills with ratings as high as 36 volts.

Hammer drill

For performing work in masonry, the hammer drill is the tool of choice. While it does bare some resemblance to a standard electric drill, it comes equipped with a hammer type action which can be switched on or off. There is a lot of vibration involved, which can be uncomfortable for the operator. The cams are typically manufactured using hardened steel to make them last longer. Hammer drills are often used for boring large holes for the purpose of preparing foundations, or fitting anchors in concrete when constructing benches or handrails. A typical hammer drill uses bits 1/4 to 1/2 inch to work into the material.

Drill Press

A drill press, or bench drill, is the least portable of the drill types since it is typically bolted to the floor or a workbench. The main components of this type of drill are a table, spindle, column, base, and drill head. A drill press is advantageous where the workpiece needs to be restrained by use of a clamp or vise, and where more power is needed when compared with the other drill types. The drill press will give the operator a mechanical advantage because of the lever action involved in the operation. Accuracy and consistency is much more easily achieved as a result of the fixed spindle angle.