IRWIN SL300 ONE HANDED BAR CLAMPS/SPREADERS 24 IN.The IRWIN Tools 524QCN 24"QUICK-GRIP SL300 clamp provides up to 300lbs of sustained clamping force that is evenly distributed through the locking swivel jaws. The SL300 is constructed with an I-beam bar to reduce flexing and bowing and maintains the unique pistol grip design and Quick-Release trigger to ensure one-handed operation. This clamp also easily converts to a spreader with a few turns of the quick change screw. New and improved one-handed clamp delivers 300 lbs of sustained clamping force, and locking swivel jaw for evenly distributed clamping force | Patented Locking Swivel Jaw | 3-1/4" Throat Depth | Removable Pads | Quick Change Screw | I-Beam Bar reduces flexing and bowing