Precision Brand 35465 Worm Gear Clamps; Clamp Type: Worm Drive ; Minimum Diameter (Fractional Inch): 3-1/16 ; Minimum Diameter (Decimal Inch): 3.0625 ; Maximum Diameter (Decimal Inch): 4.0000 ; Maximum Diameter (Inch - Fraction - 4 Decimals): 4 ; Ban