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Robert Charles DIN 3 Flute Countersink 82° - 10.4mm Head Diameter
| Head Diameter | 10.4 |
| Small Diameter | 2.5 |
| Shank Diameter | 6 |
| Overall Length | 50 |
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Description
The Robert Charles DIN 3 Flute Countersink 82° is a DIN-standard cutting tool designed to create precise 82° countersinks and chamfers for imperial fastener applications. It’s built for engineers, machinists, and production teams who need reliable, repeatable hole prep that delivers clean, accurate starts. The 3-flute cutting geometry provides smooth, stable cutting with reduced vibration, helping you achieve a crisp chamfer across steels, aluminium, and plastics. This countersink features a 10.4 mm head diameter, ready for use in a wide range of machines and setups.
- DIN-compliant 82° precision: Delivers exact 82° countersinks for reliable screw seating and consistent chamfer quality, reducing rework and ensuring imperial fastener compatibility.
- Smooth, stable 3-flute design: Three cutting edges produce a controlled cut with lower vibration, cleaner edges, and longer tool life in a variety of materials.
- Versatile material compatibility: Performs reliably on steels, aluminium, and plastics, delivering consistent results in engineering workshops and production environments.
With this countersink, you can streamline hole preparation, reduce downtime, and achieve professional finishes across a range of projects—from prototypes to high-volume production. The reliable DIN-standard performance helps you maintain tight tolerances, minimize scrap, and finish faster, whether you're setting fasteners in a steel chassis, aluminum enclosure, or plastic component. Confidence comes from a tool built to endure demanding work environments and deliver repeatable results you can trust.
Part Numbers
- Protool Part Number
- 335C10-4-82
- 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 Countersink 82°
View full collection →You are viewing 335C10-4-82. 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-6.3-82 | 6.3 | 1.5 | 5 | 45 | 5 | 82 | £30.02 | 2-3 days | |
| 335C-8.3-82 | 8.3 | 2 | 6 | 50 | 6 | 82 | £31.60 | 2-3 days | |
| 335C10-4-82 Viewing | 10.4 | 2.5 | 6 | 50 | 7.1 | 82 | £34.76 | 2-3 days | |
| 335C-12.4-82 | 12.4 | 2.8 | 8 | 56 | 8 | 82 | £37.92 | 2-3 days | |
| 335C-16.5-82 | 16.5 | 3.2 | 10 | 60 | 10 | 82 | £50.56 | 2-3 days | |
| 335C-20.5-82 | 20.5 | 3.5 | 10 | 63 | 12.5 | 82 | £69.52 | 2-3 days | |
| 335C-25.0-82 | 25.0 | 3.8 | 10 | 67 | 15 | 82 | £88.48 | 2-3 days | |
| 335C-30-82 | 30.0 | 4.2 | 12 | 71 | 18 | 82 | £154.84 | 2-3 days | |
| 335C-31.0-82 | 31.0 | 4.2 | 12 | 71 | 18 | 82 | £154.84 | 2-3 days |
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