
50
40
30
20
10
25 50 75 100 Vc [m/min]
+ 1st choice , suitable
70
60
50 HF
40
30
50 100 150 200 Vc [m/min]
HF UNI : universal purpose (page 387) + 1st choice , suitable HF HARD : special purpose (page 463) MEF : special purpose (page 483) MEX : special purpose (page 523)