ITEM NAME:4pc 1/2" Round Shank 3/8,3/4,1/2,5/8" Cutting Dia Beading Router Bit Cutter Description: - Industrial Quality Router Bits - C3 Micro-grain Tungsten Car.Build-up & Heat Resistant Teflon Coating. - Solid Hardened Steel Bodies with Anti-Kickback Design. - Color: Yellow.