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FLAT BOTTOM DRILL INFORMATION

Speed & Feed Information
			.500 - .656	.687 - 1.125	1.187 - 2.500
MATERIAL	MATERIAL EXAMPLES	S.F.M.	I.P.R.	I.P.R.	I.P.R.
MILD & LOW CARBON STEELS	1018, 1020, 1117, 1141, 12L14	800 - 1200	.001 - .002	.002 - .004	.003 - .005
HIGH CARBON & ALLOY STEELS	1045, 4140, 4340, 52100, 8620	500 - 800	.001 - .002	.002 - .003	.003 - .005
LOWER CARBON TOOL STEELS	P-20, H-13, S-7"	400 - 700	.001 - .002	.002 - .003	.003 - .005
TOOL STEELS	A-2, A-6, D-2, M-2	300 - 600	.001 - .002	.001 - .003	.002 - .004
STAINLESS STEELS	303, 304, 316, 420, 15-5PH, 17-4PH	300 - 600	.001 - .002	.001 - .003	.002 - .004
IRON	CAST, DUCTILE, NODULAR	600 - 1000	.001 - .002	.002 - .005	.003 - .006
NICKEL & TITANIUM ALLOYS	INCONEL, HASTELLOY, TI-6AL-4V	120 - 180	.001 - .0015	.001 - .002	.002 - .003
NON-FERROUS METALS	ALUMINUM, BRONZE, BRASS	1000 - 2500	.002 - .003	.003 - .006	.004 - .008

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

CHIPBREAKER

				GRADES
INSERT#	I.C.	T	R	A3M	A5M
SPEB-1511CB	.187	.082	.015	+	-
SPEB-221CB	.250	.125	.015	+	+
SPEB-2522CB	.312	.125	.031	+	+
SPEB-332CB	.375	.187	.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