4pcs/lot D4 Tapered Ball Nose End Mill Set Router Bit Milling Cutter 1pc R0.25*15 1pc R0.25*20.5 1pc R0.5*15 1pc R0.5*20.5 - Milling Cutter - AliExpress
Harvey Tool 21845-C6 | 2 Degree Taper Angle per Side 0.0450" Tip Diameter x 0.4500" LOC 3FL Ball End AlTiN Nano Coated Carbide Tapered End Mill - All Industrial Tool Supply