adjustment clamp

[nc9933]

you might have done many projects with metal and wood where you need to brace a pipe or beam to get something level..repeatedly moving where something is attached to get
an upright level or horizontal before attaching it permanently.
Has anybody heard of an adjustable clamp that works with pipe or wood beams or whatever that has a screw handle that makes small adjustments either way without having to un attach a clamp..you attach it one time roughly level and make the fine adjustment with the handle.??
anyone know of a tool like this??