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Robert Charles DIN 3 Flute Countersink 100° - 31.0mm Head Diameter
| Head Diameter | 31.0 |
| Small Diameter | 4.2 |
| Shank Diameter | 12 |
| Overall Length | 71 |
| Head Length | 18 |
| Angle | 100 |
Learn more about Klarna
The Robert Charles DIN 3 Flute Countersink 100° is designed to DIN standards for precise 100° countersinking and chamfering. Its 3-flute design ensures smooth, stable cutting with minimal chatter and efficient chip removal, delivering a clean, accurate finish. Suitable for a wide range of materials including steel, aluminium, and plastics, this countersink provides reliable performance for engineering, workshop, and production applications where precision and surface quality are essential.
| Head Diameter | 31.0 |
| Small Diameter | 4.2 |
| Shank Diameter | 12 |
| Overall Length | 71 |
| Head Length | 18 |
| Angle | 100 |
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 100°
View full collection →You are viewing 335C-31.0-100. Click any other SKU to view its full details.
| Product SKU | Head Diameter | Small Diameter | Shank Diameter | Overall Length | Head Length | Angle | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| 335C-6.3-100 | 6.3 | 1.5 | 5 | 45 | 5 | 100 | £30.02 | 2-3 days | |
| 335C-8.3-100 | 8.3 | 2 | 6 | 50 | 6 | 100 | £31.60 | 2-3 days | |
| 335C10-4-100 | 10.4 | 2.5 | 6 | 50 | 7.1 | 100 | £34.76 | 2-3 days | |
| 335C-12.4-100 | 12.4 | 2.8 | 8 | 56 | 8 | 100 | £37.92 | 2-3 days | |
| 335C-16.5-100 | 16.5 | 3.2 | 10 | 60 | 10 | 100 | £50.56 | 2-3 days | |
| 335C-20.5-100 | 20.5 | 3.5 | 10 | 63 | 12.5 | 100 | £69.52 | 2-3 days | |
| 335C-25.0-100 | 25.0 | 3.8 | 10 | 67 | 15 | 100 | £88.48 | 2-3 days | |
| 335C-30-100 | 30.0 | 4.2 | 12 | 71 | 18 | 100 | £154.84 | 2-3 days | |
| 335C-31.0-100 Viewing | 31.0 | 4.2 | 12 | 71 | 18 | 100 | £154.84 | 2-3 days |
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