Clamp, F-Style Sliding Arm, Opening (In.) 4, Throat Depth (In.) 2, Nominal Rail Size (In.) 19/32 x 3/16, Nominal Clamping Pressure 330 lb., Spindle Dia. (In.) 0.393, Pad Type Replaceable, Swivel, Non-Marring, Swivel Type Standard, Swivel Pad (In.) 7/8, Screw Size (In.) 25/64, Max. Jaw Opening (In.) 4, Clamp Face (In.) 7/8, Bar Width (In.) 19/32, Bar Material Zinc Die Cast, Handle Length (In.) 3, Handle Material Wood, Width (In.) 3-1/4