Trend CraftPro Guided Trimmer Router Cutter Bit, 1/2 Inch Shank, 19.1mm Cut Diameter & 50mm Cut Length, Tungsten Carbide Tipped, C117BX1/2TCACCURATE SURFACE ALIGNMENT: Trimmers ensure precise alignment and shaping of surfaces, particularly with laminate or veneer. They trim flush once affixed to the workpiece. Some models have side fences, while most are self guided. TUNGSTEN CARBIDE TIPPED: 2. 0mm micro granular extra hard tips for prolonged sharpness and cutter durability. Ideal for cutting softwood, hardwood, and man made timber boards. PTFE NON STICK COATING: Its PTFE non stick