HRC62° and HRC65° 4Flute end mill cutting parameter recommendation table

Material to be processed	Carbon steel/alloy steel/cast iron < 20-30HRC		Pre-hardened steel/quenched and tempered steel < 35-48HRC		Stainless steel/tool steel < 25-35HRC
diameter	Rotating speed	Feed rate	Rotating speed	Feed rate	Rotating speed	Feed rate
3	10600	565	8500	370	7430	325
4	8000	575	6500	380	5570	335
6	5300	620	4200	405	3710	350
8	4000	615	3200	415	2785	365
10	3200	605	2500	390	2230	340
12	2650	605	2100	390	1855	340
16	2000	565	1800	370	1590	325
20	1600	555	1250	365	1115	315

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