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Drills / 404

Solid Carbide Twister® GP, NC Spotting Drill

Designed for accurate spotting on NC Machines. Short lengths and no body clearance make this a very rigid tool. Easy to repoint - no web taper. Can be used at higher speeds and feeds, compatible with other carbide tooling.

2 Flutes
Solid carbide
No margin
3X+ Stub length
Uncoated, coating available upon request
90° Point
21° Helix

Materials

Series Attributes

Downloads

Speed and Feed Data

Drill Technical Data

Tolerance Chart

Series 404 Catalog Pages

Line Drawing

Product Range

	Tool No.	EDP	Diameter (D/D1)	Diameter Dec	Shank Diameter (D2)	Overall Length (L1)	Flute Length (L2)	Coating	Shank Type

.1875	40418750	40401	3/16	.1875	3/16	2	1	Uncoated	Straight
.1875	40418750A	76307	3/16	.1875	3/16	2	1	ALtima®	Straight
.1875	40418750C	17509	3/16	.1875	3/16	2	1	TiCN	Straight
.1968	40419680	40405	5mm	.1968	5mm	51mm	26mm	Uncoated	Straight
.1968	40419680A	76308	5mm	.1968	5mm	51mm	26mm	ALtima®	Straight
.2362	40423620	40409	6mm	.2362	6mm	51mm	26mm	Uncoated	Straight
.2362	40423620A	78053	6mm	.2362	6mm	51mm	26mm	ALtima®	Straight
.2500	40425000	40413	1/4	.2500	1/4	2	1	Uncoated	Straight
.2500	40425000A	10876	1/4	.2500	1/4	2	1	ALtima®	Straight
.3125	40431250	40417	5/16	.3125	5/16	2-1/2	1	Uncoated	Straight
.3125	40431250A	76309	5/16	.3125	5/16	2-1/2	1	ALtima®	Straight
.3150	40431500	40421	8mm	.3150	8mm	64mm	26mm	Uncoated	Straight
.3150	40431500A	76310	8mm	.3150	8mm	64mm	26mm	ALtima®	Straight
.3750	40437500	40425	3/8	.3750	3/8	2-1/2	1	Uncoated	Straight
.3750	40437500A	10877	3/8	.3750	3/8	2-1/2	1	ALtima®	Straight
.3750	40437500T	78054	3/8	.3750	3/8	2-1/2	1	TiN	Straight
.3750	40437500C	17343	3/8	.3750	3/8	2-1/2	1	TiCN	Straight
.3937	40439370	40429	10mm	.3937	10mm	70mm	30mm	Uncoated	Straight
.3937	40439370A	15268	10mm	.3937	10mm	70mm	30mm	ALtima®	Straight
.4724	40447240	40433	12mm	.4724	12mm	76mm	39.5mm	Uncoated	Straight
.5000	40450000	40437	1/2	.5000	1/2	3	1-9/16	Uncoated	Straight
.5000	40450000A	40450	1/2	.5000	1/2	3	1-9/16	ALtima®	Straight
.5000	40450000T	78055	1/2	.5000	1/2	3	1-9/16	TiN	Straight