Milling processing difficulty where high hard steel HRC50~70
It is not difficult to 65 degrees below 70 degrees very mature hard alloy material but the edge to handle good wall to smooth garden must beat because 70 degrees must be high speed cutting or difficult to speed up after the jump East hurt tool
The main problem is the hardness, the amount of feed smaller, the choice of tools, you should strictly request the tool coating. The general market of 55 degrees can only be less than 50 of the milling material, 55 degrees of material to 60 degrees of milling cutter, your 70 degrees is high hard, need coating to do very well, can dry.
70 degrees is indeed difficult, but processing equipment is also good, or beating and stability than hurt knives
