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Dormer Pramet A520 3.40 mm HSS TiN ADX STRAIGHT SHANK STUB DRILL DIN 1897
| Type | Short Series |
| Drill Diameter | 3.40 |
| Flute Length | 20 |
| Overall Length | 52 |
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Description
Dormer Pramet A520 3.40 mm HSS TiN ADX straight shank stub drill (DIN 1897) is a compact high‑performance tool designed for precise holemaking in metalworking and fabrication. It combines a 130° thinned point for self‑centering with a robust TiN coating to extend life and preserve cutting performance across steel, aluminum, and stainless steel.
- 130° thinned point for self-centering: Starts holes cleanly with less push force, reducing drift and improving first-pass accuracy in a range of materials.
- Titanium Nitride (TiN) coating for longer tool life: Enhances wear resistance and maintains performance when drilling harder materials, extending service life between re-grinds or replacements.
- Convex cutting edges for efficient cutting: Aids chip breaking and removal, enabling higher cutting speeds and feeds for faster hole production with smooth finishes.
Designed to deliver reliable, repeatable results, this drill helps you complete holes with consistent size and edge quality, even at higher speeds and feeds. It is capable of producing high-quality, accurate holes with h9 tolerance, thanks to its 130° point geometry, TiN coating, and premium HSS material. The combination reduces downtime from wear, minimizes rework, and supports versatile use across steel, aluminum, and stainless steel. With DIN 1897 straight shank compatibility, you can trust quick setup and secure tool retention in common chucks and collets, making it a dependable choice for both production environments and DIY projects that demand precision and predictability.
Part Numbers
- Protool Part Number
- DOR-A5203.4
- 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-A5203.4. 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 Viewing | 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 | 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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