Clutch Style Set Handle Style Screwdriver Clamping Capacity 6 in 12 in Clamping Force 600 lb Throat Depth 2 1/2 in Jaw Pad Type Swivel Sliding Mechanism Clutch Number of Clamps 4 Bar Material Steel Function Clamping Handle Material Wood Jaw Pad Height 1 9/16 in Jaw Pad Width 1 5/16 in Spreading Capacity - Maximum 12 in Spreading Capacity - Minimum 6 in