Description: Industrial Quality Router Bits,C3 Micro-grain Tungsten Carbide Cutters Great for combined plunge-cutting and pattern/template routing For increased work piece visibility, use shank bearing flush trim bit in a handheld router allowing the template to be positioned on top of the work piece In a router table, template will be positioned underneath the work piece Can be used without the bearing as a standard straight bit Specification: Material: Hardened Steel Radius: 1/2", 3/8", 1/4", 1/8" 1/2" R Cutter Diameter: approx.1-1/2" 3/8" R Cutter Diameter: approx.1-1/4" 1/4" R Cutter Diameter: approx.1" 1/8" R Cutter Diameter: approx.3/4" 1/2" R Total length: approx.2-1/2" 3/8" R Total length: approx.2-3/8" 1/4" R Total length: approx.2-1/4" 1/8" R Total length: approx.2" Package Includes: 1 Set of 4pcs Router Bits