This zero-clearance insert delivers cleaner cuts, enhanced safety, and superior workpiece support. Precision machined from a high-quality, ultra-strong phenolic core material that is covered on top and bottom with a low-friction, wear-resistant melamine surface. The positioning screws ensure a solid and precise fit in the table. This unit comes with preformed clearance slots for SawStop blade guard and riving knife and has dual metal wear plates for antikickback pawls (sold separately).