as well as the pressure applied to the bit and the RPM. With these types of tools the harder you push, the harder the impact, but also the more wear-and-tear on the unit. This is the most common type of hammer drill in use by homeowners. Most of these drills are also available...
such as driving a screw into a stud. But a cordless screwdriver can be stored in a kitchen drawer and is a tool that everyone in the family can use. It's for tightening and loosening screws into threads or pre-drilled inserts that provide little to no resistance; a cordless screwdriver ...