End Mill SetPackage: 5pcs --Diameter 2mm, 3mm, 4mm, 5mm, 6mm ParameterDiameter * Flute length * Shank diameter * Overall length: D2*5*4*50mm, D3*9*3*50mm, D4*10*4*50mm, D5*13*5*50mm, D6*15*6*50mm Feature with high bending resistance and abrasion resistance, to high hardness, high speed cutting applications. Suit forEnd mill bits are suitable for side milling, end milling, finish machining, etc. Apply to carbon steel, soft alloy steel, die steel, tool steel, cast iron, titanium, aluminum, etc. DesignThe bottom of end mill bits is u-shaped groove design, large front angle effectively reduces cutting resistance, sharp and durable, convenient for chip removal, further improve machining efficiency.