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Robert Charles DIN 3 Flute Countersinks 120° - 12.4mm HeadDiameter
| Head Diameter | 12.4 |
| Small Diameter | 2.8 |
| Shank Diameter | 8 |
| Overall Length | 56 |
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Description
The Robert Charles DIN 3 Flute Countersinks 120° are precision-engineered to DIN standards for accurate 120° countersinking and chamfering. Designed for professional use, it delivers clean, consistent chamfers with reliable cutting performance across a range of materials.
Ideal for engineers, maintenance technicians, machine shops, and serious hobbyists, this countersink pairs robust build with smooth operation to reduce chatter and improve hole quality in steel, aluminum, and plastics.
- 3‑Flute Design for Smooth Cutting: Delivers steady, chatter-free cutting and efficient chip evacuation for clean finishes
- DIN 120° Precision: Ensures consistent chamfers and reliable hole sizing across materials and depths
- 12.4mm Head Diameter for Versatility: Provides a robust cutting profile capable of 120° countersinks in a variety of workpieces
With this countersink, you can expect faster setup, fewer passes, and a professional finish that reduces downstream finishing work. The DIN-compliant geometry promotes dependable results in steel, aluminum, and plastics, making it suitable for production lines, maintenance tasks, and precision projects alike.
Part Numbers
- Protool Part Number
- 335C-12.4-120
- Brand
- Robert Charles
- Category
- Countersinks
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: Robert Charles DIN 3 Flute Countersinks 120°
View full collection →You are viewing 335C-12.4-120. Click any other SKU to view its full details.
| Product SKU | Head Diameter | Small Diameter | Shank Diameter | Overall Length | Head Length | Angler | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| 335C-6.3-120 | 6.3 | 1.5 | 5 | 45 | 5 | 120 | £41.08 | 2-3 days | |
| 335C-8.3-120 | 8.3 | 2 | 6 | 50 | 6 | 120 | £41.08 | 2-3 days | |
| 335C10-4-120 | 10.4 | 2.5 | 6 | 50 | 7.1 | 120 | £41.87 | 2-3 days | |
| 335C-12.4-120 Viewing | 12.4 | 2.8 | 8 | 56 | 8 | 120 | £51.35 | 2-3 days | |
| 335C-16.5-120 | 16.5 | 3.2 | 10 | 60 | 10 | 120 | £63.99 | 2-3 days | |
| 335C-20.5-120 | 20.5 | 3.5 | 10 | 63 | 12.5 | 120 | £86.90 | 2-3 days | |
| 335C-25.0-120 | 25.0 | 3.8 | 10 | 67 | 15 | 120 | £109.02 | 2-3 days | |
| 335C-30-120 | 30.0 | 4.2 | 12 | 71 | 18 | 120 | £178.54 | 2-3 days | |
| 335C-31.0-120 | 31.0 | 4.2 | 12 | 71 | 18 | 120 | £178.54 | 2-3 days |
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