Wegener also noted that the continents move up and down to maintain equilibrium in a process called isostasy. As an example he cited the sinking of Northern Hemisphere lands under the weight of continental ice sheets in the last ice age, and their rise since the ice melted some 10,000 years ago.
Drill bits are cutting tools used to create cylindrical holes, almost always of circular cross-section. Drill bits come in many sizes and have many uses. Bits are usually connected to a mechanism, often simply referred to as a drill, which rotates them and provides torque and axial force to create the hole.
@EOA7. I would use a drill/driver for the pilot holes and the impact for driving the screws. Thatâs how they are meant to be used. Hammer drills are âmostlyâ for pilot holes into masonry, again, using a drill/driver (or the impact) for setting the screws after.ne inch bits can be used with drills that have chucks, but they cannot be released from a quick change or an impact driver. If you insert a one inch bit into an impact driver, you may have to dismantle the driver. Been there, done that, good luck, no fun.