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Solid Carbide Twister® GP Center Drill Long Length

Designed to maintain accurate center holes on long production runs, or when precise centering is required. Solid carbide construction helps reduce tool changes when centering abrasive or difficult to machine materials.

2 Flute
Solid carbide
60° Included angle
Straight helix
5" OAL
Uncoated, coating available upon request

Materials

Series Attributes

Downloads

Speed and Feed Data

Drill Technical Data

Tolerance Chart

Series 405 Catalog Pages

Line Drawing

Product Range

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

.0250	40502500	40501	00	.0250	1/8	5	Uncoated	Straight
.0310	40503100	40505	0	.0310	1/8	5	Uncoated	Straight
.0468	40504680	40509	1	.0468	1/8	5	Uncoated	Straight
.0468	40504680A	78057	1	.0468	1/8	5	ALtima®	Straight
.0468	40504680T	76311	1	.0468	1/8	5	TiN	Straight
.0781	40507810	40513	2	.0781	3/16	5	Uncoated	Straight
.0781	40507810T	10878	2	.0781	3/16	5	TiN	Straight
.1093	40510930	40517	3	.1093	1/4	5	Uncoated	Straight
.1093	40510930A	76312	3	.1093	1/4	5	ALtima®	Straight
.1093	40510930T	76313	3	.1093	1/4	5	TiN	Straight
.1250	40512500	40521	4	.1250	5/16	5	Uncoated	Straight
.1250	40512500A	12584	4	.1250	5/16	5	ALtima®	Straight
.1250	40512500T	76314	4	.1250	5/16	5	TiN	Straight
.1875	40518750	40525	5	.1875	7/16	5	Uncoated	Straight
.1875	40518750A	17331	5	.1875	7/16	5	ALtima®	Straight
.2187	40521870	40529	6	.2187	1/2	5	Uncoated	Straight