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Robert Charles DIN 3 Flute Countersinks 120° - 10.4mm HeadDiameter
| Head Diameter | 10.4 |
| Small Diameter | 2.5 |
| Shank Diameter | 6 |
| Overall Length | 50 |
| Head Length | 7.1 |
| Angler | 120 |
Learn more about Klarna
The Robert Charles DIN 3 Flute Countersinks 120° are precision tools engineered to DIN standards for accurate 120° countersinking and chamfering. With a 10.4 mm head diameter and a 3-flute design, they deliver smooth cutting, stable performance, and efficient chip evacuation for clean, repeatable finishes across steel, aluminium, and plastics. Ideal for engineers, maintenance teams, and production environments that demand reliability and precision.
- DIN-compliant 120° geometry: Ensures accurate countersinking and chamfering to standard, reducing rework and delivering consistent hole quality across projects.
- Three-flute design for smooth cutting and efficient chip evacuation: The extra flute improves stability, minimizes vibration, and helps evacuate chips quickly for a cleaner finish and longer tool life.
- 10.4 mm head diameter for consistent chamfers: Precise head size supports uniform chamfer depth and reliable finishes when working with steel, aluminium, and plastics.
With these features, you gain predictable performance, faster setup, and fewer interruptions in production or maintenance tasks—helping you finish assemblies with precise, professional results and reduce rework across jobs.
| Head Diameter | 10.4 |
| Small Diameter | 2.5 |
| Shank Diameter | 6 |
| Overall Length | 50 |
| Head Length | 7.1 |
| Angler | 120 |
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 335C10-4-120. 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 Viewing | 10.4 | 2.5 | 6 | 50 | 7.1 | 120 | £41.87 | 2-3 days | |
| 335C-12.4-120 | 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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