The Rock Solid Master Clamp
from Tether Tools is a
lightweight alloy grip tool that allows you to mount small accessories
to flat or round surfaces from 0.5 to 2.1" thick. The Master Clamp has
a lift-ratchet style metal handle for quick and secure placement and
comes with a wedge insert for a better grip on flat surfaces. It has a
5/8" baby socket for placing on a stand, as well as a 5/8" baby stud
and 1/4"-20 male thread for multiple mounting options.