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End Mills / 278N

Solid Carbide TuffCut® XT 5 Flute End Mill

Designed specifically for specific applications in steels, stainless steels, special alloys, cast irons and hardenend steel

5 Flute
Neck relief
ALtima® Blaze coating, B=ALtima® Blaze (ALCrN) coated
Center cutting
Long flute lengths
40° Helix angle
Corner radius options
Weldon shank flat options
Enhanced corner protection
Whisper blend transition between OD and Neck

Materials

Applications

Series Attributes

Downloads

Speed and Feed Data

End Mill Technical Data

Tolerance Chart

Line Drawing

Product Range

	Tool No.	EDP	Diameter (D/D1)	Shank Diameter (D2)	Overall Length (L1)	Flute Length (L2)	Neck Length (L3)	Corner Radius	Coating	Shank Type

.1181	278 0300N3-0.25RB	27820	3mm	6mm	57mm	8mm	10mm	0.25mm	ALtima® Blaze	Straight
.1181	278 0300N3-0.5RB	27822	3mm	6mm	57mm	8mm	10mm	0.5mm	ALtima® Blaze	Straight
.1575	278 0400N3-0.25RB	27824	4mm	6mm	57mm	11mm	13mm	0.25mm	ALtima® Blaze	Straight
.1575	278 0400N3-0.5RB	27826	4mm	6mm	57mm	11mm	13mm	0.5mm	ALtima® Blaze	Straight
.1968	278 0500N3-0.25RB	27828	5mm	6mm	57mm	13mm	16mm	0.25mm	ALtima® Blaze	Straight
.1968	278 0500N3-0.5RB	27830	5mm	6mm	57mm	13mm	16mm	0.5mm	ALtima® Blaze	Straight
.1968	278 0600N3-0.25RB	27832	6mm	6mm	57mm	13mm	19mm	0.25mm	ALtima® Blaze	Straight
.2362	278 0600N3-0.5RB	27834	6mm	6mm	57mm	13mm	19mm	0.5mm	ALtima® Blaze	Straight
.2362	278 0600N3-1.0RB	27836	6mm	6mm	57mm	13mm	19mm	1mm	ALtima® Blaze	Straight
.2500	27825022NB	37011	1/4	1/4	4	3/4	2-1/8	0.015	ALtima® Blaze	Straight
.2500	27825024NB	37012	1/4	1/4	4	3/4	2-1/8	0.03	ALtima® Blaze	Straight
.3150	278 0800N3-0.25RB	27837	8mm	8mm	63mm	19mm	25mm	0.25mm	ALtima® Blaze	Straight
.3150	278 0800N3-0.5RB	27838	8mm	8mm	63mm	19mm	25mm	0.5mm	ALtima® Blaze	Straight
.3150	278 0800N3-1.0RB	27840	8mm	8mm	63mm	19mm	25mm	1mm	ALtima® Blaze	Straight
.3150	278 0800N3-2.0RB	27842	8mm	8mm	63mm	19mm	25mm	2mm	ALtima® Blaze	Straight
.3750	27837522NB	37023	3/8	3/8	4	1	2-1/8	0.015	ALtima® Blaze	Straight
.3750	27837524NB	37024	3/8	3/8	4	1	2-1/8	0.03	ALtima® Blaze	Straight
.3750	27837522NBW	14833	3/8	3/8	4	1	2-1/8	0.015	ALtima® Blaze	Weldon
.3937	278 1000N3-0.5RB	27844	10mm	10mm	72mm	22mm	31mm	0.5mm	ALtima® Blaze	Straight
.3937	278 1000N3-1.0RB	27846	10mm	10mm	72mm	22mm	31mm	1mm	ALtima® Blaze	Straight
.3937	278 1000N3-2.0RB	27848	10mm	10mm	72mm	22mm	31mm	2mm	ALtima® Blaze	Straight
.4724	278 1200N3-0.5RB	27850	12mm	12mm	84mm	26mm	38mm	0.5mm	ALtima® Blaze	Straight
.4724	278 1200N3-1.0RB	27852	12mm	12mm	84mm	26mm	38mm	1mm	ALtima® Blaze	Straight
.4724	278 1200N3-1.5RB	27854	12mm	12mm	84mm	26mm	38mm	1.5mm	ALtima® Blaze	Straight
.4724	278 1200N3-2.5RB	27856	12mm	12mm	84mm	26mm	38mm	2.5mm	ALtima® Blaze	Straight
.4724	278 1200N3-3.0RB	27858	12mm	12mm	84mm	26mm	38mm	3mm	ALtima® Blaze	Straight
.4724	278 1200N3-4.0RB	27860	12mm	12mm	84mm	26mm	38mm	4mm	ALtima® Blaze	Straight
.4724	278 1200N3-1.0RBW	77947	12mm	12mm	84mm	26mm	38mm	1mm	ALtima® Blaze	Weldon
.5000	27850022NB	37037	1/2	1/2	4	1-1/4	2-1/8	0.015	ALtima® Blaze	Straight
.5000	27850024NB	37038	1/2	1/2	4	1-1/4	2-1/8	0.03	ALtima® Blaze	Straight
.5000	27850024NBW	18267	1/2	1/2	4	1-1/4	2-1/8	0.03	ALtima® Blaze	Weldon
.6250	27862522NB	37050	5/8	5/8	4	1-1/2	2-1/8	0.015	ALtima® Blaze	Straight
.6250	27862524NB	37051	5/8	5/8	4	1-1/2	2-1/8	0.03	ALtima® Blaze	Straight
.6250	27862524NBW	14693	5/8	5/8	4	1-1/2	2-1/8	0.03	ALtima® Blaze	Weldon
.6299	278 1600N3-0.5RB	27870	16mm	16mm	100mm	35mm	50mm	0.5mm	ALtima® Blaze	Straight
.6299	278 1600N3-1.0RB	27872	16mm	16mm	100mm	35mm	50mm	1mm	ALtima® Blaze	Straight
.6299	278 1600N3-1.5RB	27874	16mm	16mm	100mm	35mm	50mm	1.5mm	ALtima® Blaze	Straight
.6299	278 1600N3-2.5RB	27876	16mm	16mm	100mm	35mm	50mm	2.5mm	ALtima® Blaze	Straight
.6299	278 1600N3-3.0RB	27878	16mm	16mm	100mm	35mm	50mm	3mm	ALtima® Blaze	Straight
.6299	278 1600N3-4.0RB	27880	16mm	16mm	100mm	35mm	50mm	4mm	ALtima® Blaze	Straight
.6299	278 1600N4-1.0RB	27871	16mm	16mm	117mm	35mm	65mm	1mm	ALtima® Blaze	Straight
.6299	278 1600N4-3.0RB	27873	16mm	16mm	117mm	35mm	65mm	3mm	ALtima® Blaze	Straight
.6299	278 1600N5-1.0RB	27875	16mm	16mm	133mm	35mm	82mm	1mm	ALtima® Blaze	Straight
.6299	278 1600N5-3.0RB	27877	16mm	16mm	133mm	35mm	82mm	3mm	ALtima® Blaze	Straight
.6299	278 1600N3-1.0RBW	77948	16mm	16mm	100mm	35mm	50mm	1mm	ALtima® Blaze	Weldon
.6299	278 1600N4-1.0RBW	77949	16mm	16mm	117mm	35mm	65mm	1mm	ALtima® Blaze	Weldon
.7500	27875022NB	37063	3/4	3/4	5	1-7/8	3	0.015	ALtima® Blaze	Straight
.7500	27875024NB	37064	3/4	3/4	5	1-7/8	3	0.03	ALtima® Blaze	Straight
.7500	27875024NBW	19430	3/4	3/4	5	1-7/8	3	0.03	ALtima® Blaze	Weldon
.7874	278 2000N3-1.0RB	27890	20mm	20mm	112mm	40mm	62mm	1mm	ALtima® Blaze	Straight
.7874	278 2000N3-3.0RB	27892	20mm	20mm	112mm	40mm	62mm	3mm	ALtima® Blaze	Straight
.7874	278 2000N3-4.0RB	27894	20mm	20mm	112mm	40mm	62mm	4mm	ALtima® Blaze	Straight
.7874	278 2000N4-1.0RB	27891	20mm	20mm	133mm	40mm	82mm	1mm	ALtima® Blaze	Straight
.7874	278 2000N4-3.0RB	27893	20mm	20mm	133mm	40mm	82mm	3mm	ALtima® Blaze	Straight
.7874	278 2000N5-1.0RB	27895	20mm	20mm	152mm	40mm	102mm	1mm	ALtima® Blaze	Straight
.7874	278 2000N5-3.0RB	27897	20mm	20mm	152mm	40mm	102mm	3mm	ALtima® Blaze	Straight
.7874	278 2000N3-2.0RBW	77950	20mm	20mm	112mm	40mm	62mm	2mm	ALtima® Blaze	Weldon
.9843	278 2500N3-1.0RB	27896	25mm	25mm	127mm	40mm	77mm	1mm	ALtima® Blaze	Straight
.9843	278 2500N3-3.0RB	27898	25mm	25mm	127mm	40mm	77mm	3mm	ALtima® Blaze	Straight
.9843	278 2500N3-4.0RB	27900	25mm	25mm	127mm	40mm	77mm	4mm	ALtima® Blaze	Straight
.9843	278 2500N4-1.0RB	27899	25mm	25mm	152mm	40mm	102mm	1mm	ALtima® Blaze	Straight
.9843	278 2500N4-3.0RB	27901	25mm	25mm	152mm	40mm	102mm	3mm	ALtima® Blaze	Straight
.9843	278 2500N5-1.0RB	27902	25mm	25mm	180mm	40mm	125mm	1mm	ALtima® Blaze	Straight
.9843	278 2500N5-3.0RB	27903	25mm	25mm	180mm	40mm	125mm	3mm	ALtima® Blaze	Straight