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Countersinks / 78

Series 78

Carbide Chatterless 6 Flute Countersink, M.A.FordMax®

Recommended for use on Hardened Steel, High Temperature Alloys, and other tough jobs.

6 Flutes
Solid Carbide 1/8 - 1/4" sizes
Solid Carbide Head Brazed to Steel Shank on Sizes 3/8" and Above
Available with 60°, 82°, 90°, 100° and 120° Included Angles
Included Angle Code (8th character of tool number): 1=60°, 2=82°, 3=90°, 4=100°
Rigid set-ups and good machinery maintenance are a must.
Not recommended for use in hand-held tools.
Straight Shank with Tang Drive on Sizes 1-1/4" and Above
Uncoated, coating available upon request

Materials

Series Attributes

Downloads

Speed and Feed Data

Tolerance Chart

Line Drawing

Product Range

	Tool No.	EDP	Diameter (D/D1)	Shank Diameter (D2)	Overall Length (L1)	Non-Cutting Tip Dia Max (D3)	Included Angle (A)	Material	Coating	Shank Type

.1250	78012501	78001	1/8	1/8	1-1/2	.030	60°	Carbide	Uncoated	Straight
.1250	78012502	78006	1/8	1/8	1-1/2	.030	82°	Carbide	Uncoated	Straight
.1250	78012503	78011	1/8	1/8	1-1/2	.030	90°	Carbide	Uncoated	Straight
.1250	78012504	78016	1/8	1/8	1-1/2	.030	100°	Carbide	Uncoated	Straight
.1250	78012506	78021	1/8	1/8	1-1/2	.030	120°	Carbide	Uncoated	Straight
.1250	78012503A	78090	1/8	1/8	1-1/2	.030	90°	Carbide	ALtima®	Straight
.1250	78012503C	78092	1/8	1/8	1-1/2	.030	90°	Carbide	TiCN	Straight
.1875	78018701	78026	3/16	3/16	1-1/2	.040	60°	Carbide	Uncoated	Straight
.1875	78018702	78031	3/16	3/16	1-1/2	.040	82°	Carbide	Uncoated	Straight
.1875	78018703	78036	3/16	3/16	1-1/2	.040	90°	Carbide	Uncoated	Straight
.1875	78018704	78041	3/16	3/16	1-1/2	.040	100°	Carbide	Uncoated	Straight
.1875	78018706	78046	3/16	3/16	1-1/2	.040	120°	Carbide	Uncoated	Straight
.1875	78018701TICN	78093	3/16	3/16	1-1/2	.040	60°	Carbide	TiCN	Straight
.1875	78018703A	78094	3/16	3/16	1-1/2	.040	90°	Carbide	ALtima®	Straight
.1875	78018704A	76850	3/16	3/16	1-1/2	.040	100°	Carbide	ALtima®	Straight
.1875	78018706A	78095	3/16	3/16	1-1/2	.040	120°	Carbide	ALtima®	Straight
.2500	78025001	78051	1/4	1/4	2	.060	60°	Carbide	Uncoated	Straight
.2500	78025002	78056	1/4	1/4	2	.060	82°	Carbide	Uncoated	Straight
.2500	78025003	78061	1/4	1/4	2	.060	90°	Carbide	Uncoated	Straight
.2500	78025004	78066	1/4	1/4	2	.060	100°	Carbide	Uncoated	Straight
.2500	78025006	78071	1/4	1/4	2	.060	120°	Carbide	Uncoated	Straight
.2500	78025004A	10913	1/4	1/4	2	.060	100°	Carbide	ALtima®	Straight
.2500	78025003A	76851	1/4	1/4	2	.060	90°	Carbide	ALtima®	Straight
.2500	78025004TICN	76852	1/4	1/4	2	.060	100°	Carbide	TiCN	Straight
.2500	78025003CS	16504	1/4	1/4	2	.060	90°	Carbide	Uncoated	Straight
.2500	78025004TIN	19365	1/4	1/4	2	.060	100°	Carbide	TiN	Straight
.2500	78025003TICN	19456	1/4	1/4	2	.060	90°	Carbide	TiCN	Straight
.3750	78037501	78076	3/8	1/4	2	.090	60°	Carbide	Uncoated	Straight
.3750	78037502	78081	3/8	1/4	2	.090	82°	Carbide	Uncoated	Straight
.3750	78037503	78086	3/8	1/4	2	.090	90°	Carbide	Uncoated	Straight
.3750	78037506	78096	3/8	1/4	2	.090	120°	Carbide	Uncoated	Straight
.3750	78037504	78091	3/8	1/4	2	.090	100°	Carbide	Uncoated	Straight
.3750	78037501A	76853	3/8	1/4	2	.090	60°	Carbide	ALtima®	Straight
.3750	78037503A	76854	3/8	1/4	2	.090	90°	Carbide	ALtima®	Straight
.3750	78037506TICN	78097	3/8	1/4	2	.090	120°	Carbide	TiCN	Straight
.3750	78037504A	14699	3/8	1/4	2	.090	100°	Carbide	ALtima®	Straight
.3750	78037502A	14824	3/8	1/4	2	.090	82°	Carbide	ALtima®	Straight
.3750	78037501AH	19538	3/8	1/4	2	.090	60°	Carbide	ALtima® 52	Straight
.5000	78050001	78101	1/2	3/8	2-1/4	.150	60°	Carbide	Uncoated	Straight
.5000	78050002	78106	1/2	3/8	2-1/4	.150	82°	Carbide	Uncoated	Straight
.5000	78050003	78111	1/2	3/8	2-1/4	.150	90°	Carbide	Uncoated	Straight
.5000	78050004	78116	1/2	3/8	2-1/4	.150	100°	Carbide	Uncoated	Straight
.5000	78050006	78121	1/2	3/8	2-1/4	.150	120°	Carbide	Uncoated	Straight
.5000	78050003TICN	10914	1/2	3/8	2-1/4	.150	90°	Carbide	TiCN	Straight
.5000	78050001TICN	76855	1/2	3/8	2-1/4	.150	60°	Carbide	TiCN	Straight
.5000	78050002A	76856	1/2	3/8	2-1/4	.150	82°	Carbide	ALtima®	Straight
.5000	78050002TIN	76857	1/2	3/8	2-1/4	.150	82°	Carbide	TiN	Straight
.5000	78050003A	78098	1/2	3/8	2-1/4	.150	90°	Carbide	ALtima®	Straight
.5000	78050003TIN	78099	1/2	3/8	2-1/4	.150	90°	Carbide	TiN	Straight
.5000	78050004A	76858	1/2	3/8	2-1/4	.150	100°	Carbide	ALtima®	Straight
.5000	78050004TICN	78100	1/2	3/8	2-1/4	.150	100°	Carbide	TiCN	Straight
.5000	78050006TICN	78102	1/2	3/8	2-1/4	.150	120°	Carbide	TiCN	Straight
.5000	78050002CE	15844	1/2	3/8	2-1/4	.150	82°	Carbide	CERAedge®	Straight
.5000	78050001AH	19370	1/2	3/8	2-1/4	.150	60°	Carbide	ALtima® 52	Straight
.5000	78050001A	19579	1/2	3/8	2-1/4	.150	60°	Carbide	ALtima®	Straight
.5000	78050006A	19580	1/2	3/8	2-1/4	.150	120°	Carbide	ALtima®	Straight
.6250	78062501	78126	5/8	3/8	2-3/8	.180	60°	Carbide	Uncoated	Straight
.6250	78062502	78131	5/8	3/8	2-3/8	.180	82°	Carbide	Uncoated	Straight
.6250	78062503	78136	5/8	3/8	2-3/8	.180	90°	Carbide	Uncoated	Straight
.6250	78062504	78141	5/8	3/8	2-3/8	.180	100°	Carbide	Uncoated	Straight
.6250	78062506	78146	5/8	3/8	2-3/8	.180	120°	Carbide	Uncoated	Straight
.6250	78062504TICN	78103	5/8	3/8	2-3/8	.180	100°	Carbide	TiCN	Straight
.6250	78062503A	17178	5/8	3/8	2-3/8	.180	90°	Carbide	ALtima®	Straight
.6250	78062504A	18044	5/8	3/8	2-3/8	.180	100°	Carbide	ALtima®	Straight
.7500	78075001	78151	3/4	1/2	2-3/4	.210	60°	Carbide	Uncoated	Straight
.7500	78075002	78156	3/4	1/2	2-3/4	.210	82°	Carbide	Uncoated	Straight
.7500	78075003	78161	3/4	1/2	2-3/4	.210	90°	Carbide	Uncoated	Straight
.7500	78075004	78166	3/4	1/2	2-3/4	.210	100°	Carbide	Uncoated	Straight
.7500	78075006	78171	3/4	1/2	2-3/4	.210	120°	Carbide	Uncoated	Straight
.7500	78075002A	76859	3/4	1/2	2-3/4	.210	82°	Carbide	ALtima®	Straight
.7500	78075002TIN	76860	3/4	1/2	2-3/4	.210	82°	Carbide	TiN	Straight
.7500	78075003A	76861	3/4	1/2	2-3/4	.210	90°	Carbide	ALtima®	Straight
.7500	78075004TIN	76862	3/4	1/2	2-3/4	.210	100°	Carbide	TiN	Straight
.7500	78075001AH	18890	3/4	1/2	2-3/4	.210	60°	Carbide	ALtima® 52	Straight
1.0000	78100001	78176	1	1/2	2-3/4	.250	60°	Carbide	Uncoated	Straight
1.0000	78100002	78181	1	1/2	2-3/4	.250	82°	Carbide	Uncoated	Straight
1.0000	78100003	78186	1	1/2	2-3/4	.250	90°	Carbide	Uncoated	Straight
1.0000	78100004	78191	1	1/2	2-3/4	.250	100°	Carbide	Uncoated	Straight
1.0000	78100006	78196	1	1/2	2-3/4	.250	120°	Carbide	Uncoated	Straight
1.0000	78100002A	76863	1	1/2	2-3/4	.250	82°	Carbide	ALtima®	Straight
1.0000	78100001B	19455	1	1/2	2-3/4	.250	60°	Carbide	ALtima® Blaze	Straight
1.2500	78125001	78201	1-1/4	1/2	3	.370	60°	Carbide	Uncoated	Tang
1.2500	78125002	78206	1-1/4	1/2	3	.370	82°	Carbide	Uncoated	Tang
1.2500	78125003	78211	1-1/4	1/2	3	.370	90°	Carbide	Uncoated	Tang
1.2500	78125002TIN	76864	1-1/4	1/2	3	.370	82°	Carbide	TiN	Tang
1.2500	78125003A	76865	1-1/4	1/2	3	.370	90°	Carbide	ALtima®	Tang
1.2500	78125003TIN	78104	1-1/4	1/2	3	.370	90°	Carbide	TiN	Tang
1.5000	78150001	78216	1-1/2	3/4	3-1/2	.430	60°	Carbide	Uncoated	Tang
1.5000	78150002	78221	1-1/2	3/4	3-1/2	.430	82°	Carbide	Uncoated	Tang
1.5000	78150003	78226	1-1/2	3/4	3-1/2	.430	90°	Carbide	Uncoated	Tang
1.5000	78150002A	12718	1-1/2	3/4	3-1/2	.430	82°	Carbide	ALtima®	Tang
1.5000	78150001A	78105	1-1/2	3/4	3-1/2	.430	60°	Carbide	ALtima®	Tang