CLAMP RETORT THREE PRONG – GUPTA BRAND 10007009C Posted on February 22, 2017May 1, 2017 by admin Three Prong, diecast in alloy, with other parts of plated brass, clamp accepts articles upto 75mm diameter, actuated by nickel plated brass pummels and twin screw. Jaws are covered in rubber. Fitted with 15cm. long mild steel or aluminium rod