Roughing end mill 3F 4F

Roughing end mills could be 3F 4F
55HRC 60HRC 65HRC
For Aluminum, steel, stainless steel,kinds of alloy materials
Description
Roughing end mills 

Suitable for roughing machining, it greatly improves processing efficiency.
Applicable to the processing of carbon steel, cast iron, alloy steel austenitic stainless steel, Aluminum etc.

the hardness have 55HRC 60HRC, and 65HRC, Large stock for kinds of sizes.