Clamp it tight at any height! No more fussing around! The Auto-Adjust Horizontal T-Slot Clamp is fitted with a 5/16" T-Bolt that inserts into a standard 5/16" T-Slot. This versatile clamp has the ability to rotate 360 degrees, allowing for a wide range of clamping applications. Eliminates the need for constant readjustment and enables the clamp to maintain clamping pressure regardless of material thickness. Features: The integrated clamping pressure adjustment screw is used to create a wide range of clamping pressures. Rotate the adjustment screw clockwise to decrease the pressure and counterclockwise to increase it. Versatile 5/16" T-Bolt: Inserts into any standard 5/16" T-Slot. Armor's pivoting base rotates 360 degrees. Automatically adjusts to variations in work piece dimensions while maintaining clamping pressure. Horizontal handle for maximum grip and comfort. Spindle adjusts horizontally and vertically for quick versatile setups. Clamping height is 2.33" Clamping force is adjustable between 25-150 lb.