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Robert Charles Metric Piloted Countersink - 3 Flutes - Integral Pilot - Straight Shank - 4.0mm Pilot Diameter - 100° Inclusive Angle
| Pilot Diameter | 4.0 |
| Inclusive Angle | 100 |
| Body Diameter | 8.96 |
| Shank Diameter | 1.3/4 |
| Overall Length | 2.5 |
Learn more about Klarna
The Robert Charles Metric Piloted Countersink – 3 Flutes – Integral Pilot – Straight Shank is built for precise countersinking of metric pre-drilled holes. The integral pilot keeps the tool aligned with the hole, preventing wander and delivering clean, concentric bevels with minimal chatter. Designed for reliable, repeatable performance, it’s a practical choice for workshops, maintenance, and production machining.
Its 3-flute cutting geometry delivers smooth cutting, excellent stability, and efficient chip evacuation, making it well suited to a wide range of materials including steel, aluminum, and plastics.
- Integral Pilot for Precise Alignment: Keeps the countersink centered in the hole, reducing wander and rework while delivering consistent, concentric finishes.
- 3‑Flute Design for Smooth Cutting and Chip Evacuation: Provides stable cuts with minimal vibration and quick debris removal for clean, high‑quality countersinks across multiple materials.
- Metric Geometry: 4.0 mm Pilot Diameter, 100° Included Angle, Straight Shank: Predictable, shop‑friendly performance with broad machine compatibility for standard metric applications.
This countersink supports faster setup, reliable results, and a smoother workflow by ensuring accurate alignment, stable cutting, and easy integration into existing tooling. It helps you achieve flush finishes with less downtime and consistent quality across production runs.
| Pilot Diameter | 4.0 |
| Inclusive Angle | 100 |
| Body Diameter | 8.96 |
| Shank Diameter | 1.3/4 |
| Overall Length | 2.5 |
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 Metric Piloted Countersink - 3 Flutes - Integral Pilot - Straight Shank
View full collection →You are viewing 5845-4.0-100. Click any other SKU to view its full details.
| Product SKU | Pilot Diameter | Inclusive Angle | Body Diameter | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| 5845-2.5-90 | 2.5 | 90 | 4.76 | 1.3/4 | 2.5 | £26.86 | 2-3 days | |
| 5845-2.5-100 | 2.5 | 100 | 4.76 | 1.3/4 | 2.5 | £26.86 | 2-3 days | |
| 5845-2.5-120 | 2.5 | 120 | 4.76 | 1.3/4 | 2.5 | £26.86 | 2-3 days | |
| 5845-3.0-90 | 3.0 | 90 | 6.72 | 1.3/4 | 2.5 | £28.44 | 2-3 days | |
| 5845-3.0-100 | 3.0 | 100 | 6.72 | 1.3/4 | 2.5 | £28.44 | 2-3 days | |
| 5845-3.0-120 | 3.0 | 120 | 6.72 | 1.3/4 | 2.5 | £28.44 | 2-3 days | |
| 5845-3.5-90 | 3.5 | 90 | 8.6 | 1.3/4 | 2.5 | £30.02 | 2-3 days | |
| 5845-3.5-100 | 3.5 | 100 | 8.6 | 1.3/4 | 2.5 | £30.02 | 2-3 days | |
| 5845-3.5-120 | 3.5 | 120 | 8.6 | 1.3/4 | 2.5 | £30.02 | 2-3 days | |
| 5845-4.0-90 | 4.0 | 90 | 8.96 | 1.3/4 | 2.5 | £30.81 | 2-3 days | |
| 5845-4.0-100 Viewing | 4.0 | 100 | 8.96 | 1.3/4 | 2.5 | £30.81 | 2-3 days | |
| 5845-4.0-120 | 4.0 | 120 | 8.96 | 1.3/4 | 2.5 | £30.81 | 2-3 days | |
| 5845-5.0-90 | 5.0 | 90 | 11.2 | 1.3/4 | 2.5 | £36.34 | 2-3 days | |
| 5845-5.0-100 | 5.0 | 100 | 11.2 | 1.3/4 | 2.5 | £36.34 | 2-3 days | |
| 5845-5.0-120 | 5.0 | 120 | 11.2 | 1.3/4 | 2.5 | £36.34 | 2-3 days | |
| 5845-6.0-90 | 6.0 | 90 | 13.44 | 1.3/4 | 2.5 | £42.66 | 2-3 days | |
| 5845-6.0-100 | 6.0 | 100 | 13.44 | 1.3/4 | 2.5 | £42.66 | 2-3 days | |
| 5845-6.0-120 | 6.0 | 120 | 13.44 | 1.3/4 | 2.5 | £42.66 | 2-3 days | |
| 5845-8.0-90 | 8.0 | 90 | 17.92 | 1.3/4 | 3.12 | £60.04 | 2-3 days | |
| 5845-8.0-100 | 8.0 | 100 | 17.92 | 1.3/4 | 3.12 | £60.04 | 2-3 days | |
| 5845-8.0-120 | 8.0 | 120 | 17.92 | 1.3/4 | 3.12 | £60.04 | 2-3 days | |
| 5845-10-90 | 10.0 | 30 | 22.4 | 1.3/4 | 3.12 | £82.16 | 2-3 days | |
| 5845-10.0-100 | 10.0 | 100 | 22.4 | 1.3/4 | 3.12 | £82.16 | 2-3 days | |
| 5845-10.0-120 | 10.0 | 120 | 22.4 | 1.3/4 | 3.12 | £82.16 | 2-3 days | |
| 5845-12.0-90 | 12.0 | 90 | 26.88 | 1.3/4 | 3.12 | £100.33 | 2-3 days | |
| 5845-12.0-100 | 12.0 | 100 | 26.88 | 1.3/4 | 3.12 | £100.33 | 2-3 days | |
| 5845-12.0-120 | 12 | 120 | 26.88 | 1.3/4 | 3.12 | £100.33 | 2-3 days |
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