If you're looking for the ultimate in tooling, you've found it. Our Polycrystalline Diamond tooling will cut a wide variety of tough, abrasive materials including particleboard, medium density fiberboard (MDF), plywood and plastic. Yet the cutting edge lasts up to 200 times longer than carbide. In the long run Polycrystalline Diamond is the most economical choice. Diamond Tipped (PCD) 'T' Slot Router Bit 'T' Slot diamond tipped router (standard 'T' slot). Use with particleboard MDF, both raw or with melamine, veneer, hardwoods, etc. Re-sharpening one to two times.