Universal Springloaded Vise

Springloaded vise clamp with reversible jaws for an opening up to 38mm.
The universal jaws have special slots to firmly hold round samples of various diameters both horizontally and vertically.

Maximum width of the jaws is 32mm.
Material: machined aluminum with stainless steel springs, rods, screws, washers, and brass sliders.
Overall size of the vise clamp is 67 x 52 x 20mm (2.64″ x 2″ x 0.8″).
M4 threaded hole in base.

Screws used are 2-56 x 1/8 cup point set screw, stainless steel and 4-40 x 1/4 , stainless steel.