Radius corner design engages the flats of the fastener, not the corners, providing 15%-20% more torque. Also prevents rounding of fasteners and enhances the turning of worn, rounded fasteners— extending fastener life and reducing chance of slippage.Manufactured to industrial specifications assuring a thin wall design with precise nut end dimensions.Specifically heat treated for the correct balance of strength and durability.7/8″ in sizeArmstrong Misc Box








