Bessey DT2400-12 Deep Throat High Performance Regular Duty All-Steel Bar Clamp has 12" Clamping Capacity, 8" Throat Depth, and 1770 lbs of Clamping Force. 

Besseys' DT2400S Series feature an extended throat depth of 8" for extra reach when you need it.  Comes with all the features of Besseys 2400S series, including the patented MorPad, sturdy rail profiles, ergonomic grip, and unmatched quality.

Features:

• Extended throat depth of 8" for extra reach
• Patented rail profile offers more clamp force with fewer spindle turns
• Patented MorPad can tilt up to 35 deg and extend clamp life, even at full capacity
• Heat treated, high carbon Acme threaded screw givesgreater load capacity, longer life and spatter resistance
• High-streength electro-galvanized sliding pin T-handle has rounded ends for comfort and is size engineered for best load capacity.  Also comes with an ergonomic grip
• The U-Shaped tempered steel sliding arm offeres straight-line power transmission and great stability