A device comprising: a first tube, the first tube configured to couple to a work surface; a second tube coupled to an end of the first tube and arranged substantially perpendicular to the first tube; a lower jaw coupled to the second tube, the lower jaw having a first semi-cylindrical surface opposite the second tube; a jaw adapter coupled to the semi-cylindrical surface; an upper jaw rotatably couple to the lower jaw, the upper jaw having a second semi-cylindrical surface disposed opposite the first semi-cylindrical surface; and, a coupling assembly arranged to couple the upper jaw to the lower jaw, the coupling assembly being disposed on one end of the upper jaw and lower jaw.