A reversible drill can alter its rotations from a clockwise direction to a counter clockwise direction, a feature that makes it suitable for both drilling and driving.
We consider a lower weight better because lighter devices are more comfortable to carry. A lower weight is also an advantage for home appliances, as it makes transportation easier, and for many other types of products.
Higher speeds work better for drilling holes in certain types of material, such as steel, aluminium, concrete, etc. The drill speed is measured in rotations per minute (rpm) when the drill has no-load.
Unknown. Help us by suggesting a value. (DeWalt DCD980L2)
Unknown. Help us by suggesting a value. (Ryobi HJP003K)
The hammering action provides short, rapid hammer thrusts that make drilling faster and easier. The hammering action is measured in blows/beats per minute (bpm) when the drill has no-load.
The chuck holds the drill bits or other rotary tools and its diameter determines the types of bits and tools that the drill can use. A larger chuck is compatible with a wider range of bits and tools.