Corded Drills & Helpful Tips

Handle a wide variety of tasks with reliable and endless drilling power

Corded Drills & Helpful Tips

Corded drills can do a wide variety of tasks around your home. From driving in screws, drilling holes in concrete, to mixing paint, a drill is one of the most useful tools in the toolbox. Often more powerful than their cordless counterparts, drills with a cord are ideal for use in a workshop or on any job where you have access to an electrical outlet or power generator.

This buying guide highlights the different uses and sizes of corded drills, plus operating tips and compatible drill bits.

Uses

Learn what tasks you can do with a drill, plus how much speed and torque are best for your jobs.

  • Corded drills can be used to drill holes and drive screws into wood, metal and concrete.
  • Hammer drills pound as they rotate to make driving holes into masonry easier.
  • Drill/drivers give you the ability to adjust the clutch, making them ideal for driving screws into consistent depths without overdriving or leaving them short.
  • With the right attachment, drills can also be used for sanding and buffing.
  • Different drill bits allow you to drill holes into wood, metal, steel, concrete and cement.

Specifications

Corded drills are available in ¼, 3/8 and ½- inch chuck sizes.

  • ¼-inch bits are ideal for drilling small holes and other light tasks.
  • Keyless chucks make bit changes quick and easy.
  • Keyed chucks require a key and lock bits securely into place.
  • Lower amp drills are good for soft woods while higher amp drills are better for hardwoods and metals.

Drill Bits

Different jobs require different bits, and knowing which to use will ensure greater consistency and quality.

Bit Type Description and Usage Benefit

Auger

  • Solid-center or expandable
  • Use with hand brace
  • Cuts both metal and wood
  • Clears debris from hole

Awl

  • Starter holes
  • Sets up the screw hole for easier drilling

Brad Point

  • Holes smaller than 1/2"
  • Wood surfaces
  • Makes clean holes

Combination

  • Drills pilot and countersink holes at the same time
  • Increases efficiency

Countersink

  • Shallow holes in wood surfaces
  • Pilot holes
  • Sets screws flush with surface
  • May feature adjustable stop collars

Forstner

  • Holes with flat bottoms
  • Ideal for holes that can't go all the way through a thin surface

Hole Saw

  • Holes larger than 1-1/4"
  • Precise circular cuts
  • Wood, plastic and metal
  • Ideal for tough materials
  • Helpful for installing cables, piping and tubing

Masonry

  • Carbide-tipped
  • Brick, concrete, stone and plaster
  • Drills through tough surfaces
  • Cuts smaller holes

Spade

  • Holes between 1/4" to 1-1/2"
  • Wood or plastic surfaces
  • Reversing out reduces the likelihood of splinters
  • Cuts quickly and accurately

Twist

  • Holes smaller than 1/2"
  • Metal and wood surfaces
  • Makes clean holes

Operating Tips & Techniques

Proper care must be taken when operating drills. Among other safety measures, be sure to wear protective eyewear.

  • When drilling metal, keep the bit and metal well-lubricated with oil as you go.
  • Drive at an angle that is perpendicular to the surface to ensure the fasteners are drilled straight.
  • If the drill begins to feel hot, stop work immediately and allow the drill to cool.
  • Use lower torque to avoid stripping screws.
  • Use bits that are smaller than the screw to avoid creating too large of a hole.


Drill Bit Maintenance

If you see smoke rising from a hole you’re drilling that’s a sign that either your bit is dull or you’re working the drill too hard.

  • Pull the bit out of a hole regularly to clear chips especially when drilling hard material like maple or wet wood.
  • Plan ahead and stock up on key spare bits when starting an important project that requires repeated use of the same bits.
  • Throw out drill bits at the first sign of wear to ensure safety and effectiveness.


Extension Cords

Always use an extension cord that will supply enough power to your drill without causing a drop 
in power or damage to the motor.