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Home Carbide End Mill Flat carbide End mill 4 Flute End Mill
4F Flat end mill 45HRC 55HRC 58HRC 60HRC 65HRC
4F Flat end mill 45HRC 55HRC 58HRC 60HRC 65HRC 4F Flat end mill 45HRC 55HRC 58HRC 60HRC 65HRC 4F Flat end mill 45HRC 55HRC 58HRC 60HRC 65HRC 4F Flat end mill 45HRC 55HRC 58HRC 60HRC 65HRC 4F Flat end mill 45HRC 55HRC 58HRC 60HRC 65HRC

4F Flat end mill 45HRC 55HRC 58HRC 60HRC 65HRC

4F Flat end mill 45HRC 55HRC 58HRC 60HRC 65HRC, 55HRC is a universal milling cutter, can for stainless steel, steel ,cast iron ,copper alloy ,Titanium alloy, 58HRC is improved one stand on 55HRC. 65HRC is more good at working stainless steel
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Description
4F Flat end mills are used for grooving, side, and face milling. They are suitable for machining steel, cast iron, hardened steel, copper alloy, alloy steel, titanium alloy, and so on. But how to choose end mills, let us recommend for you.

45HRC Flat end mill 4F: We suggest using the below 30HRC material of carbon steel alloy steel, free hardened steel, chisel tool steel, stainless steel, steel, cast iron, or copper alloy.
55HRC Flat end mill 4F, we suggest using the below 40HRC material of stainless steel, steel, cast iron, copper alloy, hardened steel, ductile iron, aluminum alloy, and so on 
58HRC Flat end mill 4F, It is better than 55HRC, and the price just increasing a bit, but the quality is at least 20%, it is U Chamfer and it has an increasingly good coating, so it can be better for kinds of material work.
60HRC Flat end mill 4F, It is better for steel. stainless steel, steel, cast iron, copper alloy, hardened steel, ductile iron, aluminum alloy, and so on 
65HRC Flat end mill 4F, It is better for stainless steel. steel, cast iron, copper alloy, hardened steel, ductile iron, aluminum alloy, and so on 

Standard size for choice: