Parameter reference of finish reamer cutting
For reference only, it shall be used according to actual observation and judgment

Velocity
Material Carbide
(SFM)		 Carbide
(m/min.)		 Feed
Low Carbon Steel 200-300 61-92 M-H
Medium Carbon Steel 125-200 38-61 M
High Carbon Steel 50-125 15-38 L
Tool Steels 50-125 15-38 L
Stainless steel Free Mach & 400 Ann. 150-250 46-76 M
Austenitic 150-250 46-76 M
Ferritic 80-120 24-37 M
Martensitic 80-120 24-37 M
PH & HT 400 Series 60-100 18-31 L-M
Cast Iron 软的 150-250 46-76 H
中等（珠光体） 75-150 23-46 L-M
硬的（马氏体的或针状的） 50-75 15-23 L
Malleable 125-200 38-61 M
Ductile 125-200 38-61 M
Titanium Pure 50-100 15-31 M
Alloys 35- 50 11-15 L-M
High Temp Alloys Nickel Based 40- 70 12-21 L
Cobalt Based 30-45 9-14 L
Copper & Hard Bronze 100-150 31-46 L
Aluminum <10% Si 500-1000 153-305 M-H
>10% Si
Plastics 500-1000 153-305 M-H
Magnesium 500-1000 153-305 M-H
Brass & Soft Bronze Free Mach & 400Ann. 250-400 76-122 M
Tough 150-250 46-76 M
Hardened Steel 25RCUnder 25 Rc 200-300 61-92 M-H
23-32 Rc 125-200 38-61 M
32-43 Rc 50-125 15-38 L
43-52 Rc 35- 50 11-15 L
50+ Rc 15-35 6-11 L
Feed Imperial
Diameter Range (IPR)
Light(L)
 Medium (M) Heavy (H)
≥1/16″ .0002-.001 .0005-.002 .001-.003
＞1/16-1/8″ .001-.002 .002-.004 .003-.006
＞1/8-1/4″ .002-.004 .004-.006 .006-.010
＞1/4-1/2″ .004-.006 .006-.010 .010-.015
＞1/2-1″ .006-.010 .010-.020 .015-.030
＞1″ .010-.020 .020-.040 .030-.050
Feed Metric
Diameter Range (mm/rev.)
Light(L) Medium (M) Heavy (H)
≥1.6mm .01-.03 .01-.05 .03-.08
＞1.6-3mm .03-.05 .05-.10 .08-.15
＞3-6mm .05-.10 .10-.15 .15-.25
＞6-12.7mm .10-.15 .15-.25 .25-.38
＞12.7-25.4mm .15-.25 .25-.51 .38-.76
＞25.4mm .25-.51 .51-1.02 .76-1.27