Shars 4 45° Indexable Face Mill ONHU 16 Cutting Edge Insert + Certificate. Indexable face mill, end mill. Axial Depth of Cut AP. Suitable for most face milling applications on steel, stainless steel, and cast iron. Reduces vibration on long overhang applications. Octagonal double side insert with 16 cutting edges is the most economical insert on the market for face machining application. Negative radial rake angle and axial rake angle structure combined with thick ONHU insert body improves cutter overall resistance to impact and toughness. Unique insert screw hole design to improve clamping rigidness. Insert available for semi-finishing and roughing application. Easy reference guide for insert number, screw, and other accessories is printed on the tool. CAT40 1-1/2″ x 4″ Face Shell Mill Tool Holder. ONHU 08T624R-GM YBG205 Carbide Insert. R8 1-1/2 Face Shell Mill Tool Holder. We also have different Face Mill and End Mill available, please visit my.