... -For high speed cutting 2 Flute High Speed Tungsten Carbide Drill Bit1.High speed drill bit have three types: ... speed cutting.8.Other products: carbide end mills, carbide inserts, collet, chuck, tool holder, tool heads, carbide rod, reamer, nut, spanner, etc ... . ZHY 2 Flute High Speed Tungsten Carbide Drill ...