HHIP 4-Inch Tilting Rotary Table & 4-inch Rotary Table Vise Rotary table diameter is 110mm or 3.94-inch. Rotary table horizontal overall height is 70mm or 2.76-inch. Rotary table vertical overall height is 70mm. Rotary table gear ratio is 36:1. Rotary table t-slot width is 7.95mm or 5/16-inch with 4 t-slots. The table has a 10 second vernier reading and one rotation of handle equals 10 degrees on the collar. The table worm gear is easily disengaged for free rotation, and it tilts 0-90 degrees. The base for the table has two bolt holes that are 9.8mm or 0.386-inch in diameter. Also included is a 4-inch Rotary Table Vise The vise is made from hardened and ground tool steel. It is a low-profile vise with 4 mounting holes to easily attach to a rotary table. The vise has a v-groove for holding round parts. The vise also comes with mounting t-nuts and cap screws. The vise T-nut slot is 16mm, the jaw width is 80mm, the jaw depth is 20mm and the jaw opening is 40mm. The vise base diameter is 106mm.