The top of the line Wilton Spark-Duty TM series with copper spindle is superior when resisting welding spatter. Every Spark-Duty F-Clamp comes standard with an ergonomic, anti-fatigue Wilton-Grip and V-Groove pad accessory. Boasting a lifetime warranty, the 4800S series F-Clamps clamp down with 4800 pounds of force.
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