Conical Tool Company Speed and Feedrate Tables

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These tables were designed for quick and easy reference of feed and speed rates for tapered end mills. This is for starting parameters only, as everyone's application is different. After seven degrees, you may have to use the large diameter multiplier provided in your catalog to figure out the large diameter of the tool you are using. Then use that figure for RPM instead of tip size. You would then use your tip size to figure your feed per tooth.
If you have any questions, or need instruction in the use of these tables, feel free to contact Dave Melinn at tech@conicaltool.com or 1-888-531-8500.

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Carbide - Feed per Tooth (Roughing and Finishing)

Material SFM 3/32 to 1/8 5/32 to 3/16 7/32 to 1/4 5/16 to 3/8 7/16 to 1/2 9/16 to 5/8 11/16 to 3/4 7/8 to 1"

Aluminum T6
2014 T6/T651 1800 .0015 .003 .0035 .004 .0055 .006 .009 .011

Copper, Brass 900 .0015 .0016 .0021 .0027 .0032 .0035 .004 .0045

Copper Alloy,
Bronze 900 .0012 .0015 .0022 .003 .0032 .004 .0042 .0055

Magnesium Diecast 1150 .001 .0012 .0015 .003 .0035 .005 .006 .008

Graphite 375 .002 .0032 .0045 .005 .0075 .008 .009 .010

High Strength 4140,
4340,52100,H11,H13 130 .0003 .0005 .0008 .001 .0015 .002 .0025 .003/td>

Mold Steels
P20, 01 ,06 130 .0004 .0005 .0008 .001 .0012 .002 .0025 .004

Alloy Steel,
200,300,11xx,13xx 240 .0004 .0006 .0009 .0015 .0025 .003 .004 .0055

Titanium Alloy
6AL-4V, 6AL-25N-ASTM 200 .0002 .0003 .0004 .0009 .0012 .002 .003 .0035

Stainless Steel
200 Series, 304-L, 316L, 303, 15115 225 .0002 .0003 .0004 .0008 .001 .002 .003 .004

Ductile
Grey Cast Iron 250 .0005 .0007 .0015 .002 .003 .004 .005 .006

Plastics and Acrylics 400 .001 .0015 .0025 .004 .005 .008 .010 .011

Nickel Base
Inconnel, Monel, K-monel,
Haspaloy, Waspaloy 75 .0004 .0005 .0007 .0009 .0015 .002 .0025 .003

SFM & FPT

R.P.M.= 3.82 X SFM divided by Diameter
IPM = CL ( chipload ) X Number of Flutes X R.P.M.

Carbide - Feed per Tooth (Roughing and Finishing)
Material	SFM	3/32 to 1/8	5/32 to 3/16	7/32 to 1/4	5/16 to 3/8	7/16 to 1/2	9/16 to 5/8	11/16 to 3/4	7/8 to 1"
Aluminum T6 2014 T6/T651	1800	.0015	.003	.0035	.004	.0055	.006	.009	.011
Copper, Brass	900	.0015	.0016	.0021	.0027	.0032	.0035	.004	.0045
Copper Alloy, Bronze	900	.0012	.0015	.0022	.003	.0032	.004	.0042	.0055
Magnesium Diecast	1150	.001	.0012	.0015	.003	.0035	.005	.006	.008
Graphite	375	.002	.0032	.0045	.005	.0075	.008	.009	.010
High Strength 4140, 4340,52100,H11,H13	130	.0003	.0005	.0008	.001	.0015	.002	.0025	.003/td>
Mold Steels P20, 01 ,06	130	.0004	.0005	.0008	.001	.0012	.002	.0025	.004
Alloy Steel, 200,300,11xx,13xx	240	.0004	.0006	.0009	.0015	.0025	.003	.004	.0055
Titanium Alloy 6AL-4V, 6AL-25N-ASTM	200	.0002	.0003	.0004	.0009	.0012	.002	.003	.0035
Stainless Steel 200 Series, 304-L, 316L, 303, 15115	225	.0002	.0003	.0004	.0008	.001	.002	.003	.004
Ductile Grey Cast Iron	250	.0005	.0007	.0015	.002	.003	.004	.005	.006
Plastics and Acrylics	400	.001	.0015	.0025	.004	.005	.008	.010	.011
Nickel Base Inconnel, Monel, K-monel, Haspaloy, Waspaloy	75	.0004	.0005	.0007	.0009	.0015	.002	.0025	.003