High Quality Steel, Ergonomic Handle, Smooth Vertical Action, High Precision Riveting, 100% USA Quality Control, 100% Customer Satisfaction GuaranteeHolding Capacity: 500 LBS Clamping PressueMaterial: Made of High Quality SteelBar Style: Smooth Vertical Solid-Bar Action Clamp (Must Be Welded for Use)Base Type: FlangedSpindle Size: 5/16-18 x 2.50High Quality Steel, Ergonomic Oil Resistant Handle, Smooth Verticall Action, High Precision Riveting, 100% USA Quality Control, 100% Customer Satisfaction GuaranteeFlangedHigh Quality SteelChinaManufacturer100% Guarantee to be Free from any Manufacturing Defects. 100% Customer Satisfaction Guarantee