Dispatch Hours
Orders dispatched Monday to Friday between 8am and 5pm (4:30pm on Fridays).
- Mon – Thurs8:00 – 17:00
- Friday8:00 – 16:30
- Sat & SunClosed
The Robert Charles DIN 3 Flute Countersinks 120° are precision-engineered to DIN standards for accurate 120° countersinking and chamfering. Featuring a 3-flute design, they deliver smooth cutting, excellent stability, and efficient chip evacuation, producing clean, consistent finishes. Ideal for a wide range of materials including steel, aluminium, and plastics, these countersinks are perfect for engineering, maintenance, and production environments where reliability and precision are essential.

Click any SKU to view full product details, specifications and datasheets.
| 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 | 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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Fast dispatch, clear delivery options and a friendly technical team on the end of the phone.
Orders dispatched Monday to Friday between 8am and 5pm (4:30pm on Fridays).
| Service | Cost |
|---|---|
| Royal Mail Tracked 24 | £5.90 |
| DPD Standard Next Day | £8.00 |
| Royal Mail Special Delivery by 1pm | £12.50 |
| DPD Saturday Delivery | £25.00 |
Saturday delivery available on orders placed before 4pm Friday. T&Cs and geographical exclusions apply (Republic of Ireland, Northern Ireland, Scottish Highlands, Channel Islands & others) — see our delivery page for full details.
If an item isn't right, sending it back is simple and hassle-free.
Read our returns policy →Our specialist team can advise on tooling choice, specifications and compatibility.
01732 887334 info@protool-ltd.co.uk