4340 Steel - Milling

METRIC

Diameter
SMM
MMPT
19.050 - 25.400
30 - 76 SMM
0.0762 - 0.1016
15.875 - 19.050
30 - 76 SMM
0.0635 - 0.0762
12.700 - 15.875
30 - 76 SMM
0.0508 - 0.0635
6.3500 - 12.700
30 - 76 SMM
0.0254 - 0.0508
3.1750 - 6.3500
30 - 76 SMM
0.0127 - 0.0254
0.0000 - 3.1750
30 - 76 SMM
0.0000 - 0.0127

Warning

Always use the speeds and feeds recommended from your tool manufacturer. Easy Speeds And Feeds only serves as a starting point and educational site.

 
 

4340 Steel - HSS Drills

METRIC

Diameter
SMM
MMPR
19.05 - 25.40
6 - 18 SMM
0.2540 - 0.2794
12.70 - 19.05
6 - 18 SMM
0.2032 - 0.2540
6.350 - 12.70
6 - 18 SMM
0.1016 - 0.2032
3.175 - 6.350
6 - 18 SMM
0.0762 - 0.1016
0.000 - 3.175
6 - 18 SMM
0.0000 - 0.0762

Warning

Always use the speeds and feeds recommended from your tool manufacturer. Easy Speeds And Feeds only serves as a starting point and educational site.

 

4340 Steel - Carbide Drills

METRIC

Diameter
SMM
MMPR
19.05 - 25.40
15 - 45 SMM
0.2540 - 0.3048
12.70 - 19.05
15 - 45 SMM
0.2032 - 0.2540
6.350 - 12.70
15 - 45 SMM
0.1270 - 0.2032
3.175 - 6.350
15 - 45 SMM
0.0762 - 0.1270
0.000 - 3.175
15 - 45 SMM
0.0000 - 0.0762

Warning

Always use the speeds and feeds recommended from your tool manufacturer. Easy Speeds And Feeds only serves as a starting point and educational site.

 

4340 Steel - Carbide Reamers

METRIC

Diameter
SMM
MMPR
19.05 - 25.40
12 - 30 SMM
0.6096 - 0.7112
12.70 - 19.05
12 - 30 SMM
0.4572 - 0.6096
6.350 - 12.70
12 - 30 SMM
0.3048 - 0.4572
3.175 - 6.350
12 - 30 SMM
0.1270 - 0.3048
0.000 - 3.175
12 - 30 SMM
0.0000 - 0.1270

Warning

Always use the speeds and feeds recommended from your tool manufacturer. Easy Speeds And Feeds only serves as a starting point and educational site.

 

4340 Steel - Carbide Thread Mill

METRIC

Diameter
SMM
MMPT
12.700 - 19.050
61 - 137 SMM
0.04572 - 0.08128
9.5250 - 12.700
61 - 137 SMM
0.03810 - 0.04572
6.3500 - 9.5250
61 - 137 SMM
0.02540 - 0.03810
4.7625 - 6.3500
61 - 137 SMM
0.01524 - 0.02540
3.1750 - 4.7625
61 - 137 SMM
0.00762 - 0.01524
0.0000 - 3.1750
61 - 137 SMM
0.00000 - 0.00762

Warning

Always use the speeds and feeds recommended from your tool manufacturer. Easy Speeds And Feeds only serves as a starting point and educational site.