The first time you place a long board or tall door in your front vise to plane its edges, you’ll realize you need a board jack at one end. You could buy a complicated addition to your workbench, or you could use a parallel-jaw clamp. Learn how this clamp can make a perfect board jack.
POWERTEC 71368 24-Inch Parallel Clamps for Woodworking
Parallel Jaw Clamps for Panel Glue Up and Project Assembly
Workshop Tips: Parallel-Jaw Clamp Makes a Handy Board Jack
Toolmaker's clamps are used by machinists and are designed to hold work together during drilling, tapping and other machining operations. They are
Set of 4 Each Taytools 772256 3 Inch Parallel Toolmakers Machinist Clamps, Overall Jaw Length 3 Inches, Usable Jaw Depth 1-3/8 Inch, Usable Jaw
Single Parallel Bar JackClamp
Workbenches - Page 3 of 12 - FineWoodworking
Surface planing board using cam clamps (from Robert Wearing's
Woodworking Jigs - Page 8 of 91 - FineWoodworking
Introducing the 40 in. Parallel Jaw Bar Clamp Set by POWERTEC. These premium bar clamps are designed to provide optimal clamping force at a parallel
POWERTEC 40 in. Woodworking Parallel Clamps Jaw Bar Clamp Spreader Tool Set (8-Pack) 71602-P4 - The Home Depot
Use a clamp to help grab large boards : r/lifehacks
Is this bundle of Clamps worth getting? : r/woodworkingtools
Reader Question: What Do You Think About the JackClamp?
Board Jack - FineWoodworking