BESSEY PC-34DR, 3/4 In. Pipe Clamps, Deep Reach 2-1/2 In. - Incredibly Versatile, Easy To Assemble, Indespensable Workshop Clamp For Woodworking, Carpentry, Home Improvement, & DIY Projects - Amazon.com
Bessey BES-BPC-H34 3/4in H Series Pipe Clamp - Atlas-Machinery