APPLICATION: Suitable for side milling, end milling, finish machining in carbon steel, alloy steel, die steel, tool steel, cast iron, and titanium. HIGH PROCESSING EFFICIENCY: the edge of end mill bits is HARD and SHARP with TIAIN coating, process the heat treatment materials with high speed, reduce changing times and improve the production efficiency. U-SHAPED GROOVE DESIGN, large front angle effectively reduces cutting resistance, sharp and durable, convenient for chip removal, further improve machining efficiency. MATERIAL: high speed steel, high hardness, good wear resistance and durability. 10 DIFFERENT KINDS OF SIZE end mills to meet your need, 2mm/0.08in,3mm/0.12in, 4mm/0.16in, 5mm/0.2in, 6mm/0.24in,7mm/0.27in, 8mm/0.31in, 9mm/0.35in,10mm/0.39in, 12mm/0.47in