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Dormer Pramet A123 5.50 mm HSS SHEET METAL STUB DRILL DIN 1897
| Type | Short Series |
| Drill Diameter | 5.50 |
| Flute Length | 18 |
| Overall Length | 66 |
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Description
The Dormer Pramet A123 5.50 mm HSS Sheet Metal Stub Drill (DIN 1897) is a precision drilling tool designed for thin sheet metal work. It’s ideal for engineers, fabricators, and DIY enthusiasts who need reliable, starting-first holes in metalwork. The 120° conventional point with a thin web helps the drill self-center and reduces the push force required for a clean, accurate start.
A steam oxide finish minimizes workpiece material from sticking to the cutting edge, keeping cutting performance smooth and reducing chip buildup. The drill is manufactured with no body clearance to improve hole roundness, delivering consistently accurate results across layers and materials. Made from premium high-speed steel, it handles a range of materials—including steel, aluminium, and stainless steel—while remaining particularly effective for thin sheet metal.
- Self-centering 120° point with thin web: Promotes accurate starts with less push force, helping holes start true and reducing wandering in thin materials.
- Steam oxide finish for reduced sticking: Keeps the cutting edge clean by minimizing material buildup, leading to smoother cuts and fewer interruptions.
- Premium HSS sheet metal design for thin materials: Built from high-speed steel and tuned for sheet metal, it delivers reliable performance across steel, aluminium, and stainless steel while maintaining hole roundness.
This drill elevates everyday metalworking by delivering consistent hole quality, faster setup, and fewer tool changes. Its self-centering tip, anti-stick finish, and precise dimensions help you complete thin-sheet projects with confidence, improve hole roundness, and maintain a steady workflow—whether you’re in a workshop, fabrication shop, or on-site job.
Part Numbers
- Protool Part Number
- DOR-A1235.5S
- 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 A123 HSS SHEET METAL STUB DRILLS DIN 1897
View full collection →You are viewing DOR-A1235.5S. Click any other SKU to view its full details.
| Product SKU | Drill Diameter | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| DOR-A1233/32S | 3/32 | 14 | 43 | 2.38 | £1.12 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1232.5S | 2.50 | 14 | 43 | 2.5 | £1.22 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1233.0S | 3.00 | 16 | 46 | 3 | £1.17 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1231/8S | 1/8 | 18 | 49 | 3.18 | £1.22 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1233.2S | 3.20 | 18 | 49 | 3.2 | £1.70 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1233.3S | 3.30 | 18 | 49 | 3.3 | £1.14 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1233.5S | 3.50 | 18 | 52 | 3.5 | £1.35 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1233.7S | 3.70 | 18 | 52 | 3.7 | £1.90 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1235/32S | 5/32 | 18 | 55 | 3.97 | £1.54 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1234.0S | 4.00 | 18 | 55 | 4 | £1.54 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1234.1S | 4.10 | 18 | 55 | 4.1 | £1.52 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1234.2S | 4.20 | 18 | 55 | 4.2 | £1.78 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1234.5S | 4.50 | 18 | 58 | 4.5 | £1.81 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1233/16S | 3/16 | 18 | 62 | 4.76 | £1.81 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1234.8S | 4.80 | 18 | 62 | 4.8 | £2.45 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1234.9S | 4.90 | 18 | 62 | 4.9 | £1.93 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1235.0S | 5.00 | 18 | 62 | 5 | £1.85 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1235.5S Viewing | 5.50 | 18 | 66 | 5.5 | £2.34 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1237/32S | 7/32 | 18 | 66 | 5.56 | £2.42 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1236.0S | 6.00 | 18 | 66 | 6 | £2.31 per item · pack of 10 | 2 days | Sold in packs of 10 |
| DOR-A1231/4S | 1/4 | 19 | 70 | 6.35 | £2.98 per item · pack of 10 | 2 days | Sold in packs of 10 |
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