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DRILL MILL TWIN INFORMATION

 

Speed & Feed Information

 

 

 

.500 - .625

.750 - 2.000

 

 

 

DRILLING

MILLING

DRILLING

MILLING

MATERIAL

MATERIAL EXAMPLES

S.F.M.

I.P.R.

I.P.R.

I.P.R.

I.P.R.

MILD & LOW CARBON STEELS

1018, 1020, 1117, 1141, 12L14

800 - 1200

.0015 - .003

.004 - .006

.003 - .005

.004 - .008

HIGH CARBON & ALLOY STEELS

1045, 4140, 4340, 52100, 8620

500 - 800

.0015 - .002

.004 - .006

.003 - .005

.004 - .008

LOWER CARBON TOOL STEELS

P-20, H-13, S-7

400 - 700

.0015 - .002

.004 - .006

.003 - .005

.004 - .008

TOOL STEELS

A-2, A-6, D-2, M-2

300 - 600

.0015 - .002

.004 - .006

.003 - .005

.004 - .008

STAINLESS STEELS

303, 304, 316, 420, 15-5PH, 17-4PH

300 - 600

.0015 - .002

.004 - .006

.003 - .005

.004 - .008

IRON

CAST, DUCTILE, NODULAR

600 - 1000

.0015 - .004

.004 - .007

.003 - .005

.004 - .010

NICKEL & TITANIUM ALLOYS

INCONEL, HASTELLOY, TI-6AL-4V

120 - 180

.0015 - .0025

.002 - .004

.002 - .004

.002 - .004

NON-FERROUS METALS

ALUMINUM, BRONZE, BRASS

1000 - 2500

.0015 - .004

.004 - .007

.003 - .005

.004 - .010

 

I.P.R. = NUMBER OF FLUTES X I.P.T.

I.P.M. = I.P.R. X R.P.M.

R.P.M. = S.F.M.\DIA. X 3.82

 

Important:

-Use chipbreaker inserts when drilling or counterboring
-Use positive top inserts when ramping or pocket milling

 

Positive Top Insert Information

 

       Positive Top Insert

 

 

 

 

AVAILABLE GRADES

INSERT#

I.C.

T

R

A3M

A5M

A9M

SDEB-1511P

.187

.082

.015

+

--

--

SDEB-2151P

.250

.093

.015

+

--

--

SPEB-222P

.250

.125

.031

+

+

+

SDEB-2522P

.312

.125

.031

+

--

--

SPEB-2522P

.312

.125

.031

+

+

+

SPEB-322P

.375

.125

.031

+

+

+

SPEB-3522PA

.437

.125

.031

+

--

--

SPEB-422PA

.500

.125

.031

+

+

--

SPEB-432PA

.500

.187

.031

+

+

+

SPEB-6352PA

.750

.220

.031

+

+

--

SPEB-842PA

1.00

.250

.031

+

+

--

 

Chipbreaker Insert Information

 

       Chipbrreaker Insert

 

 

 

 

AVAILABLE GRADES

INSERT#

I.C.

T

R

A3M

A5M

SDEB-1511CB

.187

.082

.015

+

--

SDEB-2151CB

.250

.093

.015

+

--

SPEB-222CB

.250

.125

.031

+

+

SDEB-2522CB

.312

.125

.031

+

--

SPEB-2522CB

.312

.125

.031

+

+

SPEB-322CB

.375

.125

.031

+

+

SPEB-422CB

.500

.125

.031

+

+

SPEB-432CB

.500

.187

.031

+

+

SPEB-6352CB

.750

.220

.031

+

+

SPEB-842CB

1.00

.250

.031

+

+

 

Insert Grades

A3M

TICN COATED CARBIDE / TOUGH GENERAL PURPOSE GRADE

A5M

TIALN COATED CARBIDE / WEAR RESISTANT GRADE

A9M

ADVANCED MULTI-LAYER PVD COATED CARBIDE