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Dormer Pramet A520 4.40 mm HSS TiN ADX STRAIGHT SHANK STUB DRILL DIN 1897
| Type | Short Series |
| Drill Diameter | 4.40 |
| Flute Length | 24 |
| Overall Length | 58 |
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Description
The Dormer Pramet A520 4.40 mm HSS TiN ADX Straight Shank Stub Drill is a high‑performance drilling tool designed for precise, repeatable holes across a range of materials. With its DIN 1897 straight shank, it fits a wide variety of toolholders and machines, making it a dependable choice for workshops, fabrication shops, and field applications.
Equipped with a 130° thinned point and a Titanium Nitride (TiN) coating, this drill starts cleanly, reduces the push force required, and delivers extended tool life—even when drilling tougher materials. The ADX design focuses on reliability and consistent hole quality for daily machining tasks.
- 130° Thinned Point: Self-centering action reduces wander when starting a hole and lowers the insertion force, helping you achieve accurate first holes with less effort.
- Titanium Nitride (TiN) Coating: Increases wear resistance and longevity, delivering longer life and steadier performance when drilling harder materials.
- Convex Cutting Edges: Promote efficient chip breaking and evacuation, enabling higher cutting speeds and feeds for faster, more productive drilling without sacrificing finish quality.
The A520 ADX drill combines premium HSS with a robust coating and precise geometry to deliver reliable, high‑quality holes at various speeds and feeds. It supports tight tolerances (h9) and is well suited for steel, aluminium, and stainless steel applications, providing a dependable, easy‑to‑use solution for professionals and serious hobbyists alike.
Part Numbers
- Protool Part Number
- DOR-A5204.4
- 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-A5204.4. 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 | 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 Viewing | 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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