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Dormer Pramet A225 3/16 Inch x 7/16 Inch HSS BS 60 DEG CENTRE DRILL BS 328
| Type | Short Series |
| Drill Diameter | 4.76 |
| Overall Length | 63.5 |
| Shank Diameter | 11.11 |
| Substrate | HSS |
| Coated | No |
Learn more about Klarna
The Dormer Pramet A225 centre drill is a precision 3/16 inch x 7/16 inch centre drilling tool designed to create accurate centre holes on shafts and workpieces, enabling secure holding during machining. Its double-ended design provides two drilling ends for faster hole production and reduced tool changes.
- Dual-Ended Design for Increased Productivity: Two drilling ends reduce downtime and allow you to drill more holes per tool, improving workflow and lowering overall tooling costs.
- Premium HSS for Broad Material Compatibility: High-speed steel construction delivers reliable performance across common materials—steel, aluminium, and stainless steel—in both CNC and conventional machines.
- Precise Centering Geometry with Bright Finish: The 120° pilot and 60° center cone ensure clean starts and accurate centre holes, while the bright finish minimizes material sticking to the cutting edge for smoother cuts and longer edge life.
By delivering consistent centering, easy starts, and durable performance, the A225 centre drill helps you tighten tolerances, speed up setups, and keep production moving in both CNC and manual operations. Built to withstand daily shop use with robust HSS and a bright finish, it’s a dependable, long-lasting choice for turning, milling, and drilling centers.
| Type | Short Series |
| Drill Diameter | 4.76 |
| Overall Length | 63.5 |
| Shank Diameter | 11.11 |
| Substrate | HSS |
| Coated | No |
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 A225 HSS BS 60 DEG CENTRE DRILLS BS 328
View full collection →You are viewing DOR-A225BS5. Click any other SKU to view its full details.
| Product SKU | Drill Diameter | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|
| DOR-A225BS1 | 1.19 | 38.1 | 3.18 | £3.30 | 2 days | |
| DOR-A225BS2 | 1.59 | 44.45 | 4.76 | £3.86 | 2 days | |
| DOR-A225BS3 | 2.38 | 50.8 | 6.35 | £4.65 | 2 days | |
| DOR-A225BS4 | 3.18 | 57.15 | 7.94 | £5.88 | 2 days | |
| DOR-A225BS5 Viewing | 4.76 | 63.5 | 11.11 | £10.21 | 2 days | |
| DOR-A225BS5A | 5.56 | 69.85 | 12.7 | £13.22 | 2 days | |
| DOR-A225BS6 | 6.35 | 76.2 | 15.88 | £22.33 | 2 days | |
| DOR-A225BS7 | 7.94 | 88.9 | 19.05 | £35.34 | 2 days |
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