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Dormer Pramet A520 3.80 mm HSS TiN ADX STRAIGHT SHANK STUB DRILL DIN 1897
| Type | Short Series |
| Drill Diameter | 3.80 |
| Flute Length | 22 |
| Overall Length | 55 |
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Description
The Dormer Pramet A520 3.80 mm HSS TiN ADX Straight Shank Stub Drill is a compact, precision drill designed for everyday metalworking tasks. With DIN 1897 straight-shank compatibility, it fits standard chucks and holders, making it a dependable choice for engineers, buyers, tradespeople, hobbyists, and non-technical users who need reliable hole quality in steel, aluminum, and stainless steel.
Key design features work together to deliver fast, accurate holes: a 130° thinned point ensures self-centering and lowers push force, a Titanium Nitride (TiN) coating extends tool life and improves performance on harder materials, and convex cutting edges promote easy chip breaking and removal for higher cutting speeds and feeds.
- 130° thinned point: Helps with self-centering and reduces the push force required, improving alignment and cutting efficiency.
- TiN coating for longer life: Increases service life and enhances performance when drilling harder materials.
- Convex cutting edges: Aid chip breaking and removal, enabling higher cutting speeds and feeds for faster hole production.
Designed to deliver consistent hole quality and tolerance (h9) at high speeds and feeds, the A520 combines premium HSS with a TiN coating to extend life across steel, aluminium, and stainless steel. The straight shank and stub geometry provide reliable rigidity in tight spaces, making it a dependable choice for daily shop use, precision work, or demanding applications.
Part Numbers
- Protool Part Number
- DOR-A5203.8
- 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-A5203.8. 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 Viewing | 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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