Drills / 403

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
120° Point
21° Helix

Materials

Series Attributes

Downloads

Speed and Feed Data

Drill Technical Data

Tolerance Chart

Series 403 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	Available	List Price

.1875	40318750	40301	3/16	.1875	3/16	2	1	Uncoated	Straight	269.00	28.34
.1875	40318750A	76305	3/16	.1875	3/16	2	1	ALtima®	Straight	6.00	33.97
.1968	40319680	40305	5mm	.1968	5mm	51mm	26mm	Uncoated	Straight	47.00	32.86
.2362	40323620	40309	6mm	.2362	6mm	51mm	26mm	Uncoated	Straight	48.00	42.99
.2362	40323620A	19948	6mm	.2362	6mm	51mm	26mm	ALtima®	Straight	0.00	56.76
.2500	40325000	40313	1/4	.2500	1/4	2	1	Uncoated	Straight	231.00	42.99
.3125	40331250	40317	5/16	.3125	5/16	2-1/2	1	Uncoated	Straight	206.00	56.02
.3125	40331250A	78050	5/16	.3125	5/16	2-1/2	1	ALtima®	Straight	0.00	87.32
.3150	40331500	40321	8mm	.3150	8mm	64mm	26mm	Uncoated	Straight	13.00	56.02
.3750	40337500	40325	3/8	.3750	3/8	2-1/2	1	Uncoated	Straight	192.00	71.2
.3750	40337500A	78052	3/8	.3750	3/8	2-1/2	1	ALtima®	Straight	6.00	87.58
.3937	40339370	40329	10mm	.3937	10mm	70mm	30mm	Uncoated	Straight	53.00	91.87
.4724	40347240	40333	12mm	.4724	12mm	76mm	39.5mm	Uncoated	Straight	262.00	122.88
.5000	40350000	40337	1/2	.5000	1/2	3	1-9/16	Uncoated	Straight	56.00	122.88
.5000	40350000A	76306	1/2	.5000	1/2	3	1-9/16	ALtima®	Straight	0.00	144.48