Dormer Pramet A110 3.90 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

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Dormer Pramet A110 3.90 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

Name: Dormer Pramet A110 3.90 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340
Brand: Dormer Pramet
SKU: DOR-A1103.9
Price: 3.31 GBP
Availability: InStock

SKU:DOR-A1103.9

Material Compatibility

Specification

Type	Long Series
Drill Diameter	3.90
Flute Length	78
Overall Length	119
Shank Diameter	3.9
Substrate	HSS

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£3.31

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2 days estimated lead time — subject to availability

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Meet the Dormer Pramet A110 3.90 mm HSS straight shank drill from the Long Series—a reliability-focused tool built for precision, depth, and versatility in metalworking. Designed for both handheld and machine drilling, it delivers consistent hole quality across a range of materials while staying true to exact dimensions.

Precision you can count on

The 118-degree conventional point provides a strong, self-centering start that’s easy to re-grind when needed. This means faster re-sharpening, fewer false starts, and cleaner holes in steel, aluminum, and stainless steel alike.

Coating that keeps chips moving

Steam oxide finish minimizes material adhesion at the cutting edge, promoting smoother chip flow and reducing built‑up edge. The result is steadier starts, reduced drill wandering, and cleaner hole surfaces.

Long reach, built for depth

Part of the Long Series, this drill is optimized for deeper holes and applications where extended reach matters. The straight shank is compatible with a wide range of chucks and holders, delivering dependable bite from first entry to full depth.

Premium HSS for broad material compatibility

Made from high‑quality HSS, this drill masters a variety of metals—steel, aluminum, and stainless steel—while maintaining edge retention and predictable hole size. The 3.90 mm diameter is ideal for precision components, fixtures, and assemblies that demand tight tolerances.

DIN 340 compatibility and practical use

DIN 340 designation ensures standard sizing and reliable interchangeability with compatible tools and fixtures in workshops and production environments. It’s a dependable choice whether you’re outfitting a shop or expanding your in‑house capabilities.

Who benefits most: machinists, fabricators, hobbyists, and makers who need a long‑reach, reliable drill for consistent results in metalworking projects—from electrical enclosures to automotive components. Practical tips: keep the drill sharp, use appropriate lubrication, and choose feeding speeds that balance hole quality with tool life to maximize every job you tackle.

Type	Long Series
Drill Diameter	3.90
Flute Length	78
Overall Length	119
Shank Diameter	3.9
Substrate	HSS
Coated	Steam Tempered

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We are open Monday to Friday between 8:30am and 5pm.

Do you offer Free Next Day delivery?

Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.

We also offer the following:

Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.

For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.

*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.

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Staff are very helpful and interested in providing a good service making us the customer feel valued.

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honest about stock and prices are competitive.

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Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .

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Buying experience

Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.

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Full Range: Dormer Pramet A110 HSS ST STRAIGHT SHANK LONG SERIES DRILLS DIN 340

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Product SKU	Drill Diameter	Flute Length	Overall Length	Shank Diameter	Price	Stock

DOR-A110.5	0.50	12	32	0.5	£9.76	2 days
DOR-A110.6	0.60	15	35	0.6	£8.60	2 days
DOR-A110.7	0.70	21	42	0.7	£7.84	2 days
DOR-A1101/32	1/32	25	46	0.79	£3.89	2 days
DOR-A110.8	0.80	25	46	0.8	£7.11	2 days
DOR-A110.9	0.90	29	51	0.9	£6.46	2 days
DOR-A1101.0	1.00	33	56	1	£3.86	2 days
DOR-A1101.1	1.10	37	60	1.1	£3.71	2 days
DOR-A1101.2	1.20	41	65	1.2	£3.77	2 days
DOR-A1101.3	1.30	41	65	1.3	£3.06	2 days
DOR-A1101.4	1.40	45	70	1.4	£3.44	2 days
DOR-A1101.5	1.50	45	70	1.5	£3.42	2 days
DOR-A1101/16	1/16	50	76	1.59	£3.30	2 days
DOR-A1101.6	1.60	50	76	1.6	£3.36	2 days
DOR-A1101.7	1.70	50	76	1.7	£2.99	2 days
DOR-A1101.75	1.75	53	80	1.75	£4.53	2 days
DOR-A1101.8	1.80	53	80	1.8	£3.18	2 days
DOR-A1101.9	1.90	53	80	1.9	£3.42	2 days
DOR-A1105/64	5/64	56	85	1.98	£3.42	2 days
DOR-A1102.0	2.00	56	85	2	£2.69	2 days
DOR-A1102.05	2.05	56	85	2.05	£4.33	2 days
DOR-A1102.1	2.10	56	85	2.1	£2.89	2 days
DOR-A1102.2	2.20	59	90	2.2	£3.07	2 days
DOR-A1102.25	2.25	59	90	2.25	£4.41	2 days
DOR-A1102.3	2.30	59	90	2.3	£3.18	2 days
DOR-A1103/32	3/32	62	95	2.38	£3.18	2 days
DOR-A1102.4	2.40	62	95	2.4	£3.86	2 days
DOR-A1102.5	2.50	62	95	2.5	£2.78	2 days
DOR-A1102.6	2.60	62	95	2.6	£3.86	2 days
DOR-A1102.7	2.70	66	100	2.7	£3.47	2 days
DOR-A1107/64	7/64	66	100	2.78	£3.47	2 days
DOR-A1102.8	2.80	66	100	2.8	£3.13	2 days
DOR-A1102.9	2.90	66	100	2.9	£3.42	2 days
DOR-A1103.0	3.00	66	100	3	£2.78	2 days
DOR-A1103.1	3.10	69	106	3.1	£3.30	2 days
DOR-A1101/8	1/8	69	106	3.18	£3.13	2 days
DOR-A1103.2	3.20	69	106	3.2	£3.13	2 days
DOR-A1103.25	3.25	69	106	3.25	£4.83	2 days
DOR-A1103.3	3.30	69	106	3.3	£3.36	2 days
DOR-A1103.4	3.40	73	112	3.4	£3.97	2 days
DOR-A1103.5	3.50	73	112	3.5	£3.27	2 days
DOR-A1109/64	9/64	73	112	3.57	£3.24	2 days
DOR-A1103.6	3.60	73	112	3.6	£3.24	2 days
DOR-A1103.7	3.70	73	112	3.7	£3.89	2 days
DOR-A1103.75	3.75	73	112	3.75	£5.20	2 days
DOR-A1103.8	3.80	78	119	3.8	£3.62	2 days
DOR-A1103.9 Viewing	3.90	78	119	3.9	£3.31	2 days
DOR-A1105/32	5/32	78	119	3.97	£3.37	2 days
DOR-A1104.0	4.00	78	119	4	£3.37	2 days
DOR-A1104.1	4.10	78	119	4.1	£4.47	2 days
DOR-A1104.2	4.20	78	119	4.2	£3.86	2 days
DOR-A1104.25	4.25	78	119	4.25	£6.64	2 days
DOR-A1104.3	4.30	82	126	4.3	£4.16	2 days
DOR-A11011/64	11/64	82	126	4.37	£4.10	2 days
DOR-A1104.4	4.40	82	126	4.4	£4.33	2 days
DOR-A1104.5	4.50	82	126	4.5	£4.04	2 days
DOR-A1104.6	4.60	82	126	4.6	£4.41	2 days
DOR-A1104.7	4.70	82	126	4.7	£4.70	2 days
DOR-A1104.75	4.75	82	126	4.75	£6.98	2 days
DOR-A1103/16	3/16	87	132	4.76	£4.83	2 days
DOR-A1104.8	4.80	87	132	4.8	£4.83	2 days
DOR-A1104.9	4.90	87	132	4.9	£4.86	2 days
DOR-A1105.0	5.00	87	132	5	£4.33	2 days
DOR-A1105.1	5.10	87	132	5.1	£5.46	2 days
DOR-A11013/64	13/64	87	132	5.16	£5.09	2 days
DOR-A1105.2	5.20	87	132	5.2	£5.14	2 days
DOR-A1105.25	5.25	87	132	5.25	£8.33	2 days
DOR-A1105.3	5.30	87	132	5.3	£5.56	2 days
DOR-A1105.4	5.40	91	139	5.4	£4.68	2 days
DOR-A1105.5	5.50	91	139	5.5	£5.50	2 days
DOR-A1107/32	7/32	91	139	5.56	£5.56	2 days
DOR-A1105.6	5.60	91	139	5.6	£5.96	2 days
DOR-A1105.7	5.70	91	139	5.7	£5.41	2 days
DOR-A1105.75	5.75	91	139	5.75	£8.76	2 days
DOR-A1105.8	5.80	91	139	5.8	£5.50	2 days
DOR-A1105.9	5.90	91	139	5.9	£6.16	2 days
DOR-A11015/64	15/64	91	139	5.95	£6.25	2 days
DOR-A1106.0	6.00	91	139	6	£5.46	2 days
DOR-A1106.1	6.10	97	148	6.1	£6.52	2 days
DOR-A1106.2	6.20	97	148	6.2	£6.43	2 days
DOR-A1106.25	6.25	97	148	6.25	£10.40	2 days
DOR-A1106.3	6.30	97	148	6.3	£6.46	2 days
DOR-A1101/4	1/4	97	148	6.35	£6.16	2 days
DOR-A1106.4	6.40	97	148	6.4	£7.69	2 days
DOR-A1106.5	6.50	97	148	6.5	£6.98	2 days
DOR-A1106.6	6.60	97	148	6.6	£6.66	2 days
DOR-A1106.7	6.70	97	148	6.7	£7.92	2 days
DOR-A11017/64	17/64	102	156	6.75	£6.69	2 days
DOR-A1106.75	6.75	102	156	6.75	£8.44	2 days
DOR-A1106.8	6.80	102	156	6.8	£7.71	2 days
DOR-A1106.9	6.90	102	156	6.9	£8.34	2 days
DOR-A1107.0	7.00	102	156	7	£7.37	2 days
DOR-A1107.1	7.10	102	156	7.1	£12.25	2 days
DOR-A1109/32	9/32	102	156	7.14	£8.01	2 days
DOR-A1107.2	7.20	102	156	7.2	£10.90	2 days
DOR-A1107.25	7.25	102	156	7.25	£10.40	2 days
DOR-A1107.3	7.30	102	156	7.3	£11.26	2 days
DOR-A1107.4	7.40	102	156	7.4	£12.66	2 days
DOR-A1107.5	7.50	102	156	7.5	£9.07	2 days
DOR-A1107.6	7.60	109	165	7.6	£13.30	2 days
DOR-A1107.7	7.70	109	165	7.7	£12.39	2 days
DOR-A1107.75	7.75	109	165	7.75	£11.13	2 days
DOR-A1107.8	7.80	109	165	7.8	£10.79	2 days
DOR-A1107.9	7.90	109	165	7.9	£10.08	2 days
DOR-A1105/16	5/16	109	165	7.94	£8.85	2 days
DOR-A1108.0	8.00	109	165	8	£9.12	2 days
DOR-A1108.1	8.10	109	165	8.1	£13.59	2 days
DOR-A1108.2	8.20	109	165	8.2	£12.77	2 days
DOR-A1108.25	8.25	109	165	8.25	£14.03	2 days
DOR-A1108.3	8.30	109	165	8.3	£12.98	2 days
DOR-A1108.4	8.40	109	165	8.4	£12.08	2 days
DOR-A1108.5	8.50	109	165	8.5	£10.40	2 days
DOR-A1108.6	8.60	115	175	8.6	£15.82	2 days
DOR-A1108.7	8.70	115	175	8.7	£15.17	2 days
DOR-A11011/32	11/32	115	175	8.73	£11.08	2 days
DOR-A1108.75	8.75	115	175	8.75	£18.65	2 days
DOR-A1108.8	8.80	115	175	8.8	£15.18	2 days
DOR-A1109.0	9.00	115	175	9	£11.20	2 days
DOR-A1109.1	9.10	115	175	9.1	£15.94	2 days
DOR-A1109.2	9.20	115	175	9.2	£17.69	2 days
DOR-A1109.3	9.30	115	175	9.3	£19.00	2 days
DOR-A1109.5	9.50	115	175	9.5	£12.86	2 days
DOR-A1103/8	3/8	121	184	9.52	£13.00	2 days
DOR-A1109.6	9.60	121	184	9.6	£18.92	2 days
DOR-A1109.7	9.70	121	184	9.7	£17.95	2 days
DOR-A1109.8	9.80	121	184	9.8	£16.83	2 days
DOR-A1109.9	9.90	121	184	9.9	£16.40	2 days
DOR-A11010.0	10.00	121	184	10	£13.25	2 days
DOR-A11010.1	10.10	121	184	10.1	£18.79	2 days
DOR-A11010.2	10.20	121	184	10.2	£18.59	2 days
DOR-A11010.25	10.25	121	184	10.25	£20.29	2 days
DOR-A11010.3	10.30	121	184	10.3	£23.12	2 days
DOR-A11013/32	13/32	121	184	10.32	£15.49	2 days
DOR-A11010.5	10.50	121	184	10.5	£16.32	2 days
DOR-A11010.75	10.75	128	195	10.75	£20.57	2 days
DOR-A11010.8	10.80	128	195	10.8	£19.79	2 days
DOR-A11011.0	11.00	128	195	11	£17.91	2 days
DOR-A1107/16	7/16	128	195	11.11	£18.27	2 days
DOR-A11011.5	11.50	128	195	11.5	£19.41	2 days
DOR-A11011.75	11.75	128	195	11.75	£25.17	2 days
DOR-A11012.0	12.00	134	205	12	£21.10	2 days
DOR-A11012.1	12.10	134	205	12.1	£27.31	2 days
DOR-A11012.25	12.25	134	205	12.25	£30.37	2 days
DOR-A11012.5	12.50	134	205	12.5	£23.21	2 days
DOR-A1101/2	1/2	134	205	12.7	£23.85	2 days
DOR-A11013.0	13.00	134	205	13	£24.03	2 days
DOR-A11017/32	17/32	140	214	13.49	£32.33	2 days
DOR-A11013.5	13.50	140	214	13.5	£33.29	2 days
DOR-A11014.0	14.00	140	214	14	£27.95	2 days
DOR-A1109/16	9/16	144	220	14.29	£36.02	2 days
DOR-A11014.5	14.50	144	220	14.5	£36.89	2 days
DOR-A11015.0	15.00	144	220	15	£33.74	2 days
DOR-A11015.5	15.50	149	227	15.5	£54.72	2 days
DOR-A1105/8	5/8	149	227	15.88	£46.97	2 days
DOR-A11016.0	16.00	149	227	16	£40.31	2 days
DOR-A11016.5	16.50	154	235	16.5	£58.82	2 days
DOR-A11017.0	17.00	154	235	17	£48.79	2 days
DOR-A11017.5	17.50	158	241	17.5	£67.49	2 days
DOR-A11018.0	18.00	158	241	18	£50.62	2 days
DOR-A11018.5	18.50	162	247	18.5	£84.82	2 days
DOR-A11019.0	19.00	162	247	19	£61.56	2 days
DOR-A1103/4	3/4	166	254	19.05	£71.14	2 days
DOR-A11019.5	19.50	166	254	19.5	£112.63	2 days
DOR-A11020.0	20.00	166	254	20	£69.77	2 days
DOR-A11021.0	21.00	171	261	21	£87.10	2 days
DOR-A11022.0	22.00	176	268	22	£93.02	2 days
DOR-A1107/8	7/8	176	268	22.22	£98.04	2 days
DOR-A1101	25.40	190	290	25.4	£117.65	2 days