The clamping principle of GN 862 pneumatic toggle clamps is identical in construction and dimensions to the manually operated GN 812 vertical acting toggle clamps..
.JW Winco GN23-80-5/8X11-46-D0-X Leveling Mount The unique design of the base with the convex mounting area for the concave ended stud provides not only the ability for the stud to swivel, but also does not allow liquids to build up as it will with other ball socket leveling feet.