When setting about to purchase a new drill, there are several factors to take into consideration.
 If you're an avid do-it-yourselfer or just an occasional tool toting terror, you can pick one of the many Bosch power drills that matches the demand.
  Bosch power drills are pretty high-end drills, capable of extreme power in some cases.
 But Bosch does have a range of corded and cordless drills that will suit the needs of any drill duty.
  If you're looking for flexibility to move around, you'll want a cordless drill.
 Most drills come with two batteries so you can be charging one and using another.
 If all your batteries are dead, you're pretty much stuck until one is charged.
  Cordless drills are measured in volts, from 9.
6-volts to 36-volts, typically.
  Corded drills are always able to drill, as long as you have power and a long enough cord to reach the work area.
  Corded drill power is measured in amps.
 The more amps, the more power.
  For the most part with Bosch power drills, you can find cordless drills that will perform on par with corded ones.
 So usually it is best to get a cordless drill because of the flexibility they offer.
  Up next is the chuck.
 The chuck is where the drill bit goes.
 The size of the chuck determines the size of the drill bit that you are able to use.
 A small size is 1/4-inch (found mostly on screw driver models).
 The most popular size is 3/8-inch, with the next step up being 1/2-inch.
  A 1/2-inch drill is generally very heavy-duty and has the power to drill larger holes.
  Most homeowners will be fine with an 18-24-volt cordless drill/driver.
 Most models feature variable speed (so that you can control how fast the drill rotates) and an adjustable clutch.
  All Bosch power drills feature a keyless chuck which makes changing bits a snap.