Robert Charles DIN 3 Flute Countersink 90° - 16.5mm Head Diameter

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Robert Charles DIN 3 Flute Countersink 90° - 16.5mm Head Diameter

Name: Robert Charles DIN 3 Flute Countersink 90° - 16.5mm Head Diameter
Brand: Robert Charles
SKU: 335C-16.5-90
Price: 33.18 GBP
Availability: InStock

SKU:335C-16.5-90

The Robert Charles DIN 3 Flute Countersink 90° is a precision cutting tool designed to create exact 90° countersinks and chamfers. Manufactured to DIN standards, it delivers clean, repeatable resu... Read more ↓

Material Compatibility

Specification

Head Diameter	16.5
Small Diameter	3.2
Shank Diameter	10
Overall Length	60
Head Length	10
Angle	90

£33.18

Prices shown ex. VAT

2–3 days estimated lead time — subject to availability

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With a 16.5 mm head diameter and a robust 3-flute design, this countersink provides smooth cutting, reduced vibration, and efficient chip evacuation—helping you achieve consistent, high-quality chamfers on steels, aluminium, and plastics.

DIN-standard precision: Ensures exact 90° countersinks and chamfers with a smooth surface finish across a wide range of materials.
Three-flute stability and chip evacuation: Delivers smooth, stable cutting with reduced vibration and improved chip removal for repeatable results and longer tool life.
Durable, versatile construction: Designed for reliability in demanding engineering, maintenance, and production environments, compatible with steels, aluminium, and plastics.

By delivering precise, repeatable countersinks with minimal finishing work, the Robert Charles DIN 3 Flute Countersink 90° helps streamline setups and workflows, reduce rework, and consistently improve component quality and overall productivity.

Head Diameter	16.5
Small Diameter	3.2
Shank Diameter	10
Overall Length	60
Head Length	10
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.

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Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .

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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.

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Full Range: Robert Charles DIN 3 Flute CountersinkS 90°

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You are viewing 335C-16.5-90. Click any other SKU to view its full details.

Product SKU	Head Diameter	Small Diameter	Shank Diameter	Overall Length	Head Length	Angle	Price	Stock

335C-4.3-90	4.3	1.2	4	40	3.5	90	£18.96	2-3 days
335C-5.3-90	5.3	1.5	4	40	4	90	£19.75	2-3 days
335C-6.3-90	6.3	1.5	5	45	5	90	£20.54	2-3 days
335C8.3-90	8.3	2	6	50	6	90	£21.33	2-3 days
335C-10-0-90	10.0	2.5	6	50	7.1	90	£22.12	2-3 days
335C-10.4-90	10.4	2.5	6	50	7.1	90	£22.12	2-3 days
335C-11.5-90	11.5	2.8	8	56	7.5	90	£23.70	2-3 days
335C-12.4-90	12.4	2.8	8	56	8	90	£24.49	2-3 days
335C-15.0-90	15.0	3.2	10	60	9	90	£32.39	2-3 days
335C-16.5-90 Viewing	16.5	3.2	10	60	10	90	£33.18	2-3 days
335C-19.0-90	19.0	3.5	10	63	11.2	90	£41.87	2-3 days
335C-20.5-90	20.5	3.5	10	63	12.5	90	£46.61	2-3 days
335C-23.0-90	23.0	3.8	10	67	13.2	90	£60.04	2-3 days
335C-25.0-90	25.0	3.8	10	67	15	90	£61.62	2-3 days
335C-26.0-90	26.0	3.8	10	67	15	90	£67.94	2-3 days
335C-28.0-90	28.0	4	12	71	16	90	£83.74	2-3 days
335C-30.0-90	30.0	4.2	12	71	18	90	£86.11	2-3 days
335C-31.0-90	31.0	4.2	12	71	18	90	£86.11	2-3 days