Right angle drills are designed and manufactured with the professional in mind, therefore almost every right angle drill on the market is a quality well made tool. So regardless of the tool you finally decide to purchase you will end up with a great drill.
However these type of drills do come with different features and specifications to fill different needs for professional tradespeople.
Drill Right Angle
Electricians will mostly use a right angle drill to drill holes in the 5/8 inch to 1 inch range. However because of the nature of their work, stringing wires all over buildings to cover electrical code requirements, electricians are required to drill lots of holes in joists and studs. Therefore electricians need a right angle drill that will work all day long with ease and that is easy to control with high torque at low speeds. It is also essential that a good right angle drill has a reverse to facilitate removal of a nail eater type drill bit that has become wedged or stuck.
Plumbers need a drill capable of drilling large holes in studs and joists to facilitate the installation of drains and waste pipes. Considering that joists and studs are placed 16 inches apart by code, this does not leave a lot of space for a plumber to drill a line of 4 inch holes that must line up to allow for the installation of a solid waste pipe from a toilet (wc).
Therefore a plumber will need a hole hawg type of drill with a recessed chuck to give the maximum clearance for the drill and bit to allow it to fit completely with clearance into the 14!/2 inch space between joists.
Also because the plumber is drilling large holes, up to 4 inches, the right angle drill will need a heavy duty motor with excellent torque and low speed capability, kind of like a tractor with a huge motor designed to pull heavy loads at low speeds over all terrain types with ease.
Another great feature is that not alone is the chuck placed at a 90 degree angle to the drills body, the chuck is also mobile and can be rotated and locked into any position in relation to the body. This feature allows the operator the place the drill handle in the optimum position to control the drill while drilling large holes in awkward positions where control is essential to safety. Most right angles drills have chucks that can rotate in a 180 degree span.
Lastly an essential requirement for the perfect right angle drill is a variable speed trigger. The variable speed trigger on a drills allows the operator complete control over the speed of the drill while drilling large holes in joists and studs. As a safety feature alone a variable speed trigger is a total must.
The variable speed trigger combined with the proper placing of the drill body and handle while drilling enables the person drilling to have complete control over the drill regardless of the position. This is the beauty of a right angle drill, complete control over the machine with the ability to drill large diameter holes in tight locations at awkward angles.