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Robert Charles DIN 3 Flute Countersink 90° - 4.3mm Head Diameter

Robert Charles DIN 3 Flute Countersink 90° - 4.3mm Head Diameter

SKU:335C-4.3-90

The Robert Charles DIN 3 Flute Countersink 90° is a precision cutting tool designed to create accurate 90° countersinks and chamfers. Manufactured to DIN standards, it delivers a clean, consisten... Read more ↓
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Head Diameter4.3
Small Diameter1.2
Shank Diameter4
Overall Length40
Head Length3.5
Angle90
£18.96
Prices shown ex. VAT
2–3 days estimated lead time — subject to availability
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The Robert Charles DIN 3 Flute Countersink 90° is a precision cutting tool designed to create accurate 90° countersinks and chamfers. Manufactured to DIN standards, it delivers a clean, consistent surface finish for engineers, machinists, and maintenance teams seeking reliable, repeatable results. With a 4.3 mm head diameter, this countersink offers precise control for a wide range of applications.

The 3‑flute cutting design ensures smooth, stable cutting with reduced vibration and improved chip evacuation, helping to deliver accurate and consistent results across steels, aluminium, and plastics. This makes it an ideal choice for engineering, maintenance, and production environments where reliability and precision matter.

  • DIN-standard precision for consistent results: Manufactured to DIN standards to deliver accurate 90° countersinks and chamfers with predictable sizing and finish, reducing guesswork and rework.
  • Three-flute design for smooth cutting and efficient chip evacuation: The 3‑flute geometry provides smoother, more stable cuts with reduced vibration and improved chip evacuation for a cleaner finish and fewer interruptions.
  • Wide material compatibility: Suitable for steels, aluminium, and plastics, enabling reliable performance across engineering, maintenance, and production tasks without frequent tool changes.

In practice, this countersink helps you complete projects faster with consistent results, smoother chamfers, and less downtime. Built to withstand regular use in demanding environments, it supports a reliable workflow from setup to finish.

Head Diameter 4.3
Small Diameter 1.2
Shank Diameter 4
Overall Length 40
Head Length 3.5
Angle 90

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.

★★★★★
Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
Bill
★★★★★
first place we look
honest about stock and prices are competitive.
Phil
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
Graham
★★★★★
Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Jeremy

Full Range: Robert Charles DIN 3 Flute CountersinkS 90°

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You are viewing 335C-4.3-90. Click any other SKU to view its full details.

Product SKUHead DiameterSmall DiameterShank DiameterOverall LengthHead LengthAnglePriceStock Order
335C-4.3-90 Viewing4.31.24403.590£18.96 2-3 days
335C-5.3-90 5.31.5440490£19.75 2-3 days
335C-6.3-90 6.31.5545590£20.54 2-3 days
335C8.3-90 8.32650690£21.33 2-3 days
335C-10-0-90 10.02.56507.190£22.12 2-3 days
335C-10.4-90 10.42.56507.190£22.12 2-3 days
335C-11.5-90 11.52.88567.590£23.70 2-3 days
335C-12.4-90 12.42.8856890£24.49 2-3 days
335C-15.0-90 15.03.21060990£32.39 2-3 days
335C-16.5-90 16.53.210601090£33.18 2-3 days
335C-19.0-90 19.03.5106311.290£41.87 2-3 days
335C-20.5-90 20.53.5106312.590£46.61 2-3 days
335C-23.0-90 23.03.8106713.290£60.04 2-3 days
335C-25.0-90 25.03.810671590£61.62 2-3 days
335C-26.0-90 26.03.810671590£67.94 2-3 days
335C-28.0-90 28.0412711690£83.74 2-3 days
335C-30.0-90 30.04.212711890£86.11 2-3 days
335C-31.0-90 31.04.212711890£86.11 2-3 days

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