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Dormer Pramet A520 3.90 mm HSS TiN ADX STRAIGHT SHANK STUB DRILL DIN 1897
| Type | Short Series |
| Drill Diameter | 3.90 |
| Flute Length | 22 |
| Overall Length | 55 |
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Description
The Dormer Pramet A520 3.90 mm HSS TiN ADX Straight Shank Stub Drill (DIN 1897) is a compact, high-performance drill designed for precise metalwork. Sized at 3.90 mm, it fits standard chucks and is ideal for engineers, buyers, tradespeople, hobbyists, and anyone needing clean, accurate holes in steel, aluminium, and stainless steel. Its 130-degree thinned point helps self-centre entry and reduces the push force required to start the hole.
Equipped with a Titanium Nitride coating, this drill bit delivers longer service life and consistent performance on harder materials. Convex cutting edges aid chip breaking and removal, enabling higher cutting speeds and feeds without sacrificing hole quality.
- 130° thinned point for self-centering entry: Reduces push force and helps start holes cleanly with minimal wandering.
- TiN coating for longer life and hard-material performance: Extends tool life and maintains sharpness when drilling steel, stainless steel, and other alloys.
- Convex cutting edges for efficient chip control: Helps break chips, supports higher speeds and feeds, and improves hole quality.
Designed for reliability and precision, this drill delivers consistent hole quality within H9 tolerance, even at higher speeds and feeds. The DIN 1897 straight shank ensures quick tool changes and broad compatibility with common drill chucks, making it a versatile choice for both workshop and production environments. Whether tackling routine metalwork or demanding applications, the A520 3.90 mm drill helps reduce rework, minimize downtime, and improve overall workflow with durable, predictable performance.
Part Numbers
- Protool Part Number
- DOR-A5203.9
- Brand
- Dormer Pramet
- Category
- Drill
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
What time are Protool open?
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.
Full Range: Dormer Pramet A520 HSS TiN ADX STRAIGHT SHANK STUB DRILLS DIN 1897
View full collection →You are viewing DOR-A5203.9. Click any other SKU to view its full details.
| Product SKU | Drill Diameter | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| DOR-A5203.0 | 3.00 | 16 | 46 | 3 | £7.80 | 2 days | |
| DOR-A5203.1 | 3.10 | 18 | 49 | 3.1 | £11.10 | 2 days | |
| DOR-A5201/8 | 1/8 | 18 | 49 | 3.18 | £7.83 | 2 days | |
| DOR-A5203.2 | 3.20 | 18 | 49 | 3.2 | £11.10 | 2 days | |
| DOR-A5203.3 | 3.30 | 18 | 49 | 3.3 | £7.63 | 2 days | |
| DOR-A5203.4 | 3.40 | 20 | 52 | 3.4 | £13.22 | 2 days | |
| DOR-A5203.5 | 3.50 | 20 | 52 | 3.5 | £9.01 | 2 days | |
| DOR-A5203.6 | 3.60 | 20 | 52 | 3.6 | £12.72 | 2 days | |
| DOR-A5203.7 | 3.70 | 20 | 52 | 3.7 | £12.63 | 2 days | |
| DOR-A5203.8 | 3.80 | 22 | 55 | 3.8 | £13.04 | 2 days | |
| DOR-A5203.9 Viewing | 3.90 | 22 | 55 | 3.9 | £13.57 | 2 days | |
| DOR-A5204.0 | 4.00 | 22 | 55 | 4 | £10.00 | 2 days | |
| DOR-A5204.1 | 4.10 | 22 | 55 | 4.1 | £10.00 | 2 days | |
| DOR-A5204.2 | 4.20 | 22 | 55 | 4.2 | £11.67 | 2 days | |
| DOR-A5204.3 | 4.30 | 24 | 58 | 4.3 | £15.88 | 2 days | |
| DOR-A52011/64 | 11/64 | 24 | 58 | 4.37 | £11.92 | 2 days | |
| DOR-A5204.4 | 4.40 | 24 | 58 | 4.4 | £16.20 | 2 days | |
| DOR-A5204.5 | 4.50 | 24 | 58 | 4.5 | £11.95 | 2 days | |
| DOR-A5204.6 | 4.60 | 24 | 58 | 4.6 | £15.18 | 2 days | |
| DOR-A5204.7 | 4.70 | 24 | 58 | 4.7 | £16.20 | 2 days | |
| DOR-A5203/16 | 3/16 | 26 | 62 | 4.76 | £11.92 | 2 days | |
| DOR-A5204.8 | 4.80 | 26 | 62 | 4.8 | £16.20 | 2 days | |
| DOR-A5204.9 | 4.90 | 26 | 62 | 4.9 | £12.84 | 2 days | |
| DOR-A5205.0 | 5.00 | 26 | 62 | 5 | £12.13 | 2 days | |
| DOR-A5205.1 | 5.10 | 26 | 62 | 5.1 | £19.26 | 2 days | |
| DOR-A5205.2 | 5.20 | 26 | 62 | 5.2 | £18.76 | 2 days | |
| DOR-A5205.3 | 5.30 | 26 | 62 | 5.3 | £19.26 | 2 days | |
| DOR-A5205.4 | 5.40 | 28 | 66 | 5.4 | £20.70 | 2 days | |
| DOR-A5205.5 | 5.50 | 28 | 66 | 5.5 | £15.40 | 2 days | |
| DOR-A5207/32 | 7/32 | 28 | 66 | 5.56 | £16.04 | 2 days | |
| DOR-A5205.6 | 5.60 | 28 | 66 | 5.6 | £20.43 | 2 days | |
| DOR-A5205.7 | 5.70 | 28 | 66 | 5.7 | £20.67 | 2 days | |
| DOR-A5205.8 | 5.80 | 28 | 66 | 5.8 | £19.71 | 2 days | |
| DOR-A5205.9 | 5.90 | 28 | 66 | 5.9 | £25.25 | 2 days | |
| DOR-A5206.0 | 6.00 | 28 | 66 | 6 | £15.06 | 2 days | |
| DOR-A5206.1 | 6.10 | 31 | 70 | 6.1 | £25.93 | 2 days | |
| DOR-A5206.2 | 6.20 | 31 | 70 | 6.2 | £26.04 | 2 days | |
| DOR-A5206.3 | 6.30 | 31 | 70 | 6.3 | £26.31 | 2 days | |
| DOR-A5201/4 | 1/4 | 31 | 70 | 6.35 | £19.44 | 2 days | |
| DOR-A5206.4 | 6.40 | 31 | 70 | 6.4 | £25.78 | 2 days | |
| DOR-A5206.5 | 6.50 | 31 | 70 | 6.5 | £19.65 | 2 days | |
| DOR-A5206.6 | 6.60 | 31 | 70 | 6.6 | £26.81 | 2 days | |
| DOR-A5206.7 | 6.70 | 31 | 70 | 6.7 | £26.55 | 2 days | |
| DOR-A52017/64 | 17/64 | 34 | 74 | 6.75 | £26.57 | 2 days | |
| DOR-A5206.8 | 6.80 | 34 | 74 | 6.8 | £27.98 | 2 days | |
| DOR-A5206.9 | 6.90 | 34 | 74 | 6.9 | £32.73 | 2 days | |
| DOR-A5207.0 | 7.00 | 34 | 74 | 7 | £21.23 | 2 days | |
| DOR-A5207.1 | 7.10 | 34 | 74 | 7.1 | £35.54 | 2 days | |
| DOR-A5209/32 | 9/32 | 34 | 74 | 7.14 | £21.89 | 2 days | |
| DOR-A5207.2 | 7.20 | 34 | 74 | 7.2 | £35.32 | 2 days | |
| DOR-A5207.4 | 7.40 | 34 | 74 | 7.4 | £35.32 | 2 days | |
| DOR-A5207.5 | 7.50 | 34 | 74 | 7.5 | £25.14 | 2 days | |
| DOR-A5207.8 | 7.80 | 37 | 79 | 7.8 | £37.35 | 2 days | |
| DOR-A5207.9 | 7.90 | 37 | 79 | 7.9 | £42.83 | 2 days | |
| DOR-A5205/16 | 5/16 | 37 | 79 | 7.94 | £26.07 | 2 days | |
| DOR-A5208.0 | 8.00 | 37 | 79 | 8 | £26.28 | 2 days | |
| DOR-A5208.1 | 8.10 | 37 | 79 | 8.1 | £43.62 | 2 days | |
| DOR-A5208.2 | 8.20 | 37 | 79 | 8.2 | £45.22 | 2 days | |
| DOR-A5208.3 | 8.30 | 37 | 79 | 8.3 | £45.17 | 2 days | |
| DOR-A5208.4 | 8.40 | 37 | 79 | 8.4 | £45.22 | 2 days | |
| DOR-A5208.5 | 8.50 | 37 | 79 | 8.5 | £34.22 | 2 days | |
| DOR-A5208.6 | 8.60 | 40 | 84 | 8.6 | £47.35 | 2 days | |
| DOR-A5208.7 | 8.70 | 40 | 84 | 8.7 | £46.28 | 2 days | |
| DOR-A52011/32 | 11/32 | 40 | 84 | 8.73 | £36.60 | 2 days | |
| DOR-A5208.8 | 8.80 | 40 | 84 | 8.8 | £45.28 | 2 days | |
| DOR-A5209.0 | 9.00 | 40 | 84 | 9 | £33.68 | 2 days | |
| DOR-A5209.1 | 9.10 | 40 | 84 | 9.1 | £57.46 | 2 days | |
| DOR-A5209.5 | 9.50 | 40 | 84 | 9.5 | £44.75 | 2 days | |
| DOR-A5203/8 | 3/8 | 43 | 89 | 9.52 | £44.75 | 2 days | |
| DOR-A5209.6 | 9.60 | 43 | 89 | 9.6 | £59.05 | 2 days | |
| DOR-A5209.7 | 9.70 | 43 | 89 | 9.7 | £57.46 | 2 days | |
| DOR-A52025/64 | 25/64 | 43 | 89 | 9.92 | £64.37 | 2 days | |
| DOR-A52010.0 | 10.00 | 43 | 89 | 10 | £42.35 | 2 days | |
| DOR-A52010.1 | 10.10 | 43 | 89 | 10.1 | £59.58 | 2 days | |
| DOR-A52010.2 | 10.20 | 43 | 89 | 10.2 | £59.58 | 2 days | |
| DOR-A52010.3 | 10.30 | 43 | 89 | 10.3 | £64.90 | 2 days | |
| DOR-A52013/32 | 13/32 | 43 | 89 | 10.32 | £70.76 | 2 days | |
| DOR-A52010.5 | 10.50 | 43 | 89 | 10.5 | £60.12 | 2 days | |
| DOR-A52027/64 | 27/64 | 47 | 95 | 10.72 | £82.46 | 2 days | |
| DOR-A52010.8 | 10.80 | 47 | 95 | 10.8 | £87.78 | 2 days | |
| DOR-A52011.0 | 11.00 | 47 | 95 | 11 | £58.52 | 2 days | |
| DOR-A52011.1 | 11.10 | 47 | 95 | 11.1 | £82.46 | 2 days | |
| DOR-A5207/16 | 7/16 | 47 | 95 | 11.11 | £60.12 | 2 days | |
| DOR-A52011.3 | 11.30 | 47 | 95 | 11.3 | £86.72 | 2 days | |
| DOR-A52011.5 | 11.50 | 47 | 95 | 11.5 | £71.82 | 2 days | |
| DOR-A52011.7 | 11.70 | 47 | 95 | 11.7 | £86.72 | 2 days | |
| DOR-A52011.8 | 11.80 | 47 | 95 | 11.8 | £86.72 | 2 days | |
| DOR-A52012.0 | 12.00 | 51 | 102 | 12 | £68.63 | 2 days | |
| DOR-A52012.1 | 12.10 | 51 | 102 | 12.1 | £108.00 | 2 days | |
| DOR-A52012.2 | 12.20 | 51 | 102 | 12.2 | £103.21 | 2 days | |
| DOR-A52031/64 | 31/64 | 51 | 102 | 12.3 | £110.66 | 2 days | |
| DOR-A52012.5 | 12.50 | 51 | 102 | 12.5 | £89.38 | 2 days | |
| DOR-A5201/2 | 1/2 | 51 | 102 | 12.7 | £69.16 | 2 days | |
| DOR-A52012.8 | 12.80 | 51 | 102 | 12.8 | £109.59 | 2 days | |
| DOR-A52013.0 | 13.00 | 51 | 102 | 13 | £79.27 | 2 days |
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