Sales & Service Support
H-8300 Clamp, H-8320 Clamp Holders for Extension Rings. Standard (Die-cast aluminum) with 5/16" steel thumbscrews, H-8325 Clamp Holders for Extension Rings. Standard (Brass) with 5/16" steel thumbscrews, H-8342 Adjustable: Aluminum, with 1/4"-20 steel thumbscrews. Swivels and locks to any angle
