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Robet Charles Imperial Piloted Countersink - 3 Flutes Integral Pilot Straight Shank - 3/16 Pilot Diameter - 120° Inclusive Angle
| Pilot Diameter | 3/16 |
| Inclusive Angle | 120 |
| Body Diameter | 0.405 |
| Shank Diameter | 1.3/4 |
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Description
The Robet Charles Imperial piloted countersink is engineered for precise, repeatable countersinking in precision machining applications. Featuring a 3-flute cutting design and an integral pilot, it ensures accurate hole alignment, smooth cutting action, and reduced chatter. With a 3/16" pilot diameter and a 120° included angle, this tool is designed for tight tolerances and repeatable results across aerospace, automotive, and general engineering work. The straight shank enables easy mounting in standard toolholders for quick setup and reliable performance.
- Integral 3-Flute Design: Delivers smooth cutting action and efficient material removal, minimizing chatter for cleaner, more consistent countersinks.
- Built-In Pilot for Exact Alignment: The integral pilot guides the countersink to the correct center, helping maintain concentricity and reducing misalignment during production runs.
- Precision Pilot Diameter (3/16"): Pilot diameter is tightly held to −0.0005" to −0.0015", with a 120° included angle, delivering repeatable, concentric results across parts.
The tool is designed to help you finish parts with reliable accuracy, reduce rework, and keep workflows moving smoothly—especially when working on high-precision components in aerospace, automotive, or general engineering applications. Its combination of a tight pilot tolerance, robust 3-flute geometry, and rigid straight shank supports consistent performance from setup through final pass.
Part Numbers
- Protool Part Number
- 5855-3/16-120
- 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.
