Best Buys
The Which? Best Buy award is given to
products with high total test scores that perform consistently well in
our rigorous lab tests and excel in all key areas.
Energy Savers
We award the Energy Saver logo to
products that our testing shows are very energy efficient, meaning
they'll cost you less to run.
Don't Buys
The Which? Don't Buy logo alerts you
to the products that performed extremely poorly in one or more key
areas of our tests.
Hammer drilling in concrete
How well combination drills, with hammer action, drill through concrete. We aim to drill 50mm holes and we record how quickly the drills can do this.
Rotary drilling in stone
How well the drills sink holes in sandstone. We use 6mm bits and aim to reach 30mm.
Rotary drilling in wood
How well the drills sink holes in beech. We use a 6mm drill bit and aim to reach a depth of 40mm.
Rotary drilling in metal
How well the drills drive holes in steel. We use a 6mm bit and aim for a depth of 6mm.
Screwdriving in wood
How well the drills drive screws into pine.
Battery life
This is based on the number of holes and screws that a drill can sink and drive on a full and a quick-charge. It also takes into account the difference between the actual and the stated discharge times as well as the amount of energy discharged from the battery after not being used for a month.
Drill type
Combination drills provide rotary drilling, screwdriving and hammer drilling for very hard surfaces such as concrete. Drill drivers can drill wood, metal and stone and drive srews in, but they can't drill concrete.
Drill weight (kg)
We weigh drills with the battery attached. There can be upto 1.5kg difference in weight between the lightest and the heaviest. drills.
Drill voltage (V)
Drill voltage varies - drills with a higher voltage are usually more powerful.
Rated capacity (Ah)
The rated capacity of each battery is shown in Amp hours (Ah)
Number of gears
Drills with two gears will do a better overall job of drilling and screwdriving than drills with just one.
Battery type
Lithium Ion (Li Ion) batteries provide the better energy storage for cordless drills than Nickel-cadmium (Ni Cd)
Price
Typical prices are the most common online price we found and are updated monthly. Retailers you see on the 'Compare Prices' links are from a 3rd party. We cannot guarantee stock availability at these retailers and don't endorse them in any way. We are not responsible for any loss or damage for 3rd party websites and have no control over their content.
Back
