ITEM NAME:8mmx30mm CNC Router Bottom Cleaning Bit Milling Cutter Carving Woodworking Description: - Using for hand-making or woodworking - Industrial Quality Router Bits - The blade is made of high quality tungsten steel alloy forging blade, body is made of titanium steel material(HSS) - Build-up & Heat Resistant Coating - Baked on heat resistant coating prevents build-up of sawdust, resin, and pitch. - Industrial grade micro grain car.Using for hand-making or woodworking. - Shank Diamter: 8mm( 5/16"). - The blade is made of high quality tungsten steel alloy forging blade, body is made of titanium steel material(HSS). - Build-up & Heat Resistant Coating.