Product Name:Four flute monobloc end mills Coating:nACo coating HRC:63° Helix angle:45° Number of flutes:4 Material:Stainless steel, cast iron, copper, titanium, graphite, plastics, composites, etc. Applicable machines:CNC machining centres, engraving machines, precision engraving machines and other high-speed machines. Package include: According to your choice. Please make sure your address 100% right. We will try our best to help you solve the problems. Your satisfaction is very important for us. Due to high volume of daily incoming emails and time zone difference, please allow 24 hours for us to reply. For the funcitonal products in our shop, we make sure that the functions are the same as description, but the actual color and shape may looks a little different from pictures because of the technical improvement and manufacturing variance.