Basics of Quickdraws
Quickdraws are typically used to connect your rope
to a bolt when lead climbing. The straight-gate carabiner
on the quickdraw is connected to the bolt and then the rope
is placed through the bent-gate carabiner
on the other end of the quickdraw.
The main purpose of quickdraws is to reduce rope
drag. Quickdraws help to 'straighten' the path of the rope
therefore making the rope
easier to pull. There is nothing worse than having to pull up 30 pounds worth of force (due to rope
drag) when climbing.
Quickdraws also makes clipping the rope
faster therefore protecting yourself faster.Full Article