150mm Polyurethane Cross Serrated Magnetic Jaws compatible with any 6" Vice including the Sykes-Pickavant Unbreakable Vice.Polyurethane with small cross serrationsfor a firm grip with ashore hardness of A82.Bites onto the work piece without damagingor scratching it and isis so flexible, that it returns to itsoriginal shape after deformation. Equipped with an extremely powerful magnetic strip which easily attaches the jaw to the vice and ensures a rapid setup. The magnetic strip is only magnetic against the vice jaws and will not attract debris or fillings to the clamping surface nor magnetize the clamped parts. Features an extremely powerful neodymium magnetic strip. Holding force for a 100mm jaw is 3.5kg equivalent to 34N, for instance. These Magnetic Jaws can also be used in combination with one another. For instance, for taper pins or thin walled tubes use the Neutral or Prism / Vee Pipetogether with the Rubber option. For irregularly profiled parts with one flat surface use the Fib