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Robet Charles Imperial Piloted Countersink - 3 Flutes Integral Pilot Straight Shank - 3/32 Pilot Diameter - 120° Inclusive Angle
| Pilot Diameter | 3/32 |
| Inclusive Angle | 120 |
| Body Diameter | 0.19 |
| Shank Diameter | 1.3/4 |
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Description
The Robet Charles Imperial piloted countersink is a precision tool built for accurate countersinking in machining where hole alignment matters. Its 3-flute design and integral pilot deliver a smooth, stable cut with reduced chatter, making it a reliable choice for aerospace, automotive, and general engineering work. The 3/32 inch pilot diameter supports precise seating for standard hole sizes.
Manufactured with strict tolerances, the pilot diameter is held to −0.0005" to −0.0015", ensuring repeatable, concentric results from part to part and across multiple tools.
- Integrated pilot with 120° inclusive angle: The integral pilot aligns the countersink with the bore and the 120° angle matches common chamfer requirements for accurate, clean countersinking.
- Three-flute design for smooth cutting: The 3 cutting edges deliver efficient material removal, reduced chatter, and a high-quality finish even in tougher materials.
- Precise pilot diameter tolerance: Pilot diameter held to −0.0005" to −0.0015" ensures repeatable, concentric countersinks across production runs.
With its straight shank and precision engineering, this tool helps you complete countersinks in fewer passes, producing consistent depths and clean edges. The tight tolerances support dependable performance across aerospace, automotive, and general engineering applications, helping you reduce setup time, minimize rework, and improve overall part quality.
Part Numbers
- Protool Part Number
- 5855-3/32-120
- 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.
