Please log in here to access all benefits, including promotional discounts and faster checkouts.
Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 5/32 Pilot Diameter - 100°
| Pilot Diameter | 5/32 |
| Cutter Diameter | 1/2 |
| Inclusive Angle | 100 |
| Thread | 1/4-28 |
| Decimal Equivalent | . 1563 |
Learn more about Klarna
The Robert Charles Piloted Microstop Countersink is a precision countersinking tool designed for exact hole alignment and repeatable depth control. It combines a built‑in integral pilot with a 3‑flute cutting design to deliver clean, concentric countersinks—ideal for aerospace, automotive, and other high‑precision applications. Designed for use with microstop cages, it features a threaded shank for secure fitment and reliable depth control. The tool offers a 100° countersink angle and a 5/32" pilot diameter to ensure consistent seating and excellent finish across parts.
- Integral pilot with 3‑flute design: Provides precise hole alignment and efficient material removal for a clean, concentric countersink.
- Threaded shank for secure fit in microstop cages: Locks the tool in place during use, delivering stable, repeatable depth control and minimizing movement.
- 5/32" pilot diameter with tight tolerance: Pilot diameter held to −0.0005" to −0.0015", enabling high‑precision alignment and consistent countersinking for aerospace, automotive, and precision parts.
By delivering precise alignment, repeatable depth, and a robust interface with microstop equipment, this countersink helps you speed setups, reduce rework, and achieve consistent, high‑quality finishes across demanding production runs.
| Pilot Diameter | 5/32 |
| Cutter Diameter | 1/2 |
| Inclusive Angle | 100 |
| Thread | 1/4-28 |
| Decimal Equivalent | . 1563 |
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 Piloted Microstop Countersinks - 3 Flute - Integral Pilot - Threaded Shank
View full collection →You are viewing SUNF5/32-100-1/2. Click any other SKU to view its full details.
| Product SKU | Pilot Diameter | Cutter Diameter | Inclusive Angle | Thread | Decimal Equivalent | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| SUNF3/32-100-1/2 | 3/32 | 1/2 | 100 | 1/4-28 | . 0938 | £33.18 | 2-3 days | |
| SUNF1/8-100-1/2 | 1/8 | 1/2 | 100 | 1/4-28 | . 1250 | £33.18 | 2-3 days | |
| SUNF5/32-100-1/2 Viewing | 5/32 | 1/2 | 100 | 1/4-28 | . 1563 | £33.18 | 2-3 days | |
| SUNF3/16-100-1/2 | 3/16 | 1/2 | 100 | 1/4-28 | . 1875 | £33.18 | 2-3 days | |
| SUNF7/32-100-1/2 | 7/32 | 1/2 | 100 | 1/4-28 | . 2188 | £33.18 | 2-3 days | |
| SUNF1/4-100-1/2 | 1/4 | 1/2 | 100 | 1/4-28 | . 2500 | £33.18 | 2-3 days |
No products match your filters.
