Laboratory Clamp Holder SAWISPHY Laboratory Clamps 3 Prong With Lab Stand Clamp Retort Clamps It is made of zinc-alloy covered jaws for protection and grip. Clamp Holder Chemstry ☆ EASY ADJUSTEMENT - The boss head of the clamp holder is large, which is easy-to-rotate in order to provide extra leverage to easy and accurate adjustment. We carry a full line of laboratory clamps, stands, lattices and supports. These include 2 and 3-pronged clamps, joint clamps and springs, holders and... ☆ SPECIFICATION - 3 prong finger laboratory clamp can accommodate rods up to 20 mm, and the maximum width of the jaw opening is 90 mm Adjust Laboratory Clamp 3 Prong Swivel Clamp ... - UK ☆ APPLICATION - This set can be used for home, laboratory fixed test tube, etc.