Built to Factory original tolerances and made from wear and corrosion resistant 440C stainless steel, this breaker plate is designed to fit in a Davis Standard thermatic 4.5" extruder. Specs = 1.374-1.376" thickness, 5.742-5.745" OD, 4.5" x .250 screen pack recess with 10 degree undercut and a radial hole pattern consisting of 293 5/32" holes with blending countersinks on the inlet side. Contact us for quantity discounts or to apply for net 30 terms.