Bar Clamp/Spreader Clamping Capacity 12 in Throat Depth 3 1/2 in Clamping Force 445 lb Jaw Pad Type Soft-Touch Smooth Jaw Pad Height 1 7/8 in Jaw Pad Width 1 1/2 in Spreading Capacity - Maximum 20 in Spreading Capacity - Minimum 6 1/2 in Bar Material Steel Handle Material Plastic Jaw Material Polyamide Tool Operation Type One Handed