... cutter,digital micrometers Weifeng Hardware & Tool Manufacture supply: four flute carbide end mill, bi-metal backsaw blade, high speed cutter, spline ... , gear hob, PCD inserts....Features as follow(Order No) Cutting Shank Flute A.0.L d D l L R0.5 ... .01815030182-4.02015040202-4.02216050222-4.02416060242-4.0251606025 Solid Carbide Ball-Nose Milling Cutter Long Shank