IRWIN 518QCN 18" Clamp/Spread Next Generation

New and improved one-handed clamp delivers 300 lbs of sustained clamping force, and locking swivel jaw for evenly distributed clamping forcePatented Locking Swivel Jaw3-1/4" Throat DepthRemovable PadsQuick Change ScrewI-Beam Bar reduces flexing and bowingSpecificationsItem #Clamping CapacitySpreading CapacityThroat Depth506QCN6" (15 cm)7-1/2" - 13-3/8" (196 mm - 338 mm)3-1/4" (81 mm)512QCN12" (30 cm)7-1/2" - 19-1/4" (196 mm - 488 mm)3-1/4" (81 mm)518QCN18" (45 cm)7-1/2" - 25-1/4" (196 mm - 640 mm)3-1/4" (81 mm)524QCN24" (60 cm)7-1/2" - 31-1/4" (196 mm - 793 mm)3-1/4" (81 mm)536QCN36" (91 cm)7-1/2" - 43-1/4" (196 mm - 1097 mm)3-1/4" (81 mm)