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Robert Charles Imperial 3 Flute Countersink 82° - 3/4 Head Diameter
| Head Diameter | 3/4 |
| Small Diameter | 5/32 |
| Shank Diameter | 1/2 |
| Overall Length | 2.1/2 |
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Description
The Robert Charles Imperial 3 Flute Countersink 82° - 3/4 Head Diameter is a precision cutting tool designed for accurate countersinking of imperial-sized holes. Ideal for workshops, maintenance tasks, and production machining, it delivers clean, consistent chamfers that help parts fit together smoothly and look professionally finished. Built for reliable performance, this countersink enables high-quality results across a range of materials.
- 82° imperial countersink with 3/4" head diameter: Delivers precise, repeatable chamfers for imperial-sized holes, ensuring a consistent start and clean edges every time.
- Three-flute design for smooth cutting and stability: Provides a smoother cutting action, better stability, and reduced chatter, helping you achieve high-quality finishes across steel, aluminium, and plastics.
- Durable construction for reliable performance: Built to withstand frequent use in workshops, maintenance, and production environments, supporting consistent results and long tool life across a variety of applications.
This countersink is engineered to simplify your workflow: you get tight, uniform chamfers that improve assembly fit, minimize rework, and produce a professional surface finish with less effort. Whether you’re setting up a part for assembly or refreshing edges on a production run, it empowers precise, dependable results with every cut.
Part Numbers
- Protool Part Number
- 5858-3/4-82
- 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.
Full Range: Robert Charles Imperial 3 Flute Countersinks
View full collection →You are viewing 5858-3/4-82. Click any other SKU to view its full details.
| Product SKU | Head Diameter | Small Diameter | Shank Diameter | Overall Length | Inclusive Angle | Shank Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| 5858-1/4-60 | 1/4 | 3/32 | 3/16 | 1.3/4 | 60 | 1.1/4 | £20.54 | 2-3 days | |
| 5858-3/8-60 | 3/8 | 1/8 | 1/4 | 1.3/4 | 60 | 1.1/4 | £23.70 | 2-3 days | |
| 5858-1/2-60 | 1/2 | 1/8 | 3/8 | 1.7/8 | 60 | 1.1/4 | £26.86 | 2-3 days | |
| 5858-5/8-60 | 5/8 | 5/32 | 1/2 | 2 | 60 | 1.1/4 | £37.92 | 2-3 days | |
| 5858-3/4-60 | 3/4 | 5/32 | 1/2 | 2.1/2 | 60 | 1.1/2 | £54.51 | 2-3 days | |
| 5858-1-60 | 1.00 | 3/16 | 1/2 | 2.3/4 | 60 | 1.1/2 | £71.89 | 2-3 days | |
| 5858-1.1/4-60 | 1.1/4 | 1/4 | 1/2 | 3 | 60 | 1.1/2 | £108.23 | 2-3 days | |
| 5858-1/4-82 | 1/4 | 3/32 | 3/16 | 1.3/4 | 82 | 1.1/4 | £29.23 | 2-3 days | |
| 5858-3/8-82 | 3/8 | 1/8 | 1/4 | 1.3/4 | 82 | 1.1/4 | £34.76 | 2-3 days | |
| 5858-1/2-82 | 1/2 | 1/8 | 3/8 | 1.7/8 | 82 | 1.1/4 | £37.92 | 2-3 days | |
| 5858-5/8-82 | 5/8 | 5/32 | 1/2 | 2 | 82 | 1.1/4 | £51.35 | 2-3 days | |
| 5858-3/4-82 Viewing | 3/4 | 5/32 | 1/2 | 2.1/2 | 82 | 1.1/2 | £70.31 | 2-3 days | |
| 5858-1-82 | 1.00 | 3/16 | 1/2 | 2.3/4 | 82 | 1.1/2 | £88.48 | 2-3 days | |
| 5858-1.1/4-82 | 1.1/4 | 1/4 | 1/2 | 3 | 82 | 1.1/2 | £151.68 | 2-3 days | |
| 5858-1/4-90 | 1/4 | 3/32 | 3/16 | 1.3/4 | 90 | 1.1/4 | £18.96 | 2-3 days | |
| 5858-3/8-90 | 3/8 | 1/8 | 1/4 | 1.3/4 | 90 | 1.1/4 | £22.12 | 2-3 days | |
| 5858-1/2-90 | 1/2 | 1/8 | 3/8 | 1.7/8 | 90 | 1.1/4 | £23.70 | 2-3 days | |
| 5858-5/8-90 | 5/8 | 5/32 | 1/2 | 2 | 90 | 1.1/4 | £31.60 | 2-3 days | |
| 5858-3/4-90 | 3/4 | 5/32 | 1/2 | 2.1/2 | 90 | 1.1/2 | £45.82 | 2-3 days | |
| 5858-1-90 | 1.00 | 3/16 | 1/2 | 2.3/4 | 90 | 1.1/2 | £63.20 | 2-3 days | |
| 5858-1.1/4-90 | 1.1/4 | 1/4 | 1/2 | 3 | 90 | 1.1/2 | £109.02 | 2-3 days | |
| 5858-1/4-100 | 1/4 | 3/32 | 3/16 | 1.5/8 | 100 | 1.1/2 | £29.23 | 2-3 days | |
| 5858-3/8-100 | 3/8 | 1/8 | 1/4 | 1.5/8 | 100 | 1.1/4 | £33.97 | 2-3 days | |
| 5858-1/2-100 | 1/2 | 1/8 | 3/8 | 1.5/8 | 100 | 1.1/4 | £37.92 | 2-3 days | |
| 5858-5/8-100 | 5/8 | 5/32 | 1/2 | 1.7/8 | 100 | 1.1/4 | £50.56 | 2-3 days | |
| 5858-3/4-100 | 3/4 | 5/32 | 1/2 | 2.1/8 | 100 | 1.1/2 | £69.52 | 2-3 days | |
| 5858-1-100 | 1.00 | 3/16 | 1/2 | 2.1/2 | 100 | 1.1/2 | £88.48 | 2-3 days | |
| 5858-1.1/4-100 | 1.1/4 | 1/4 | 1/2 | 2.3/4 | 100 | 1.1/2 | £151.68 | 2-3 days | |
| 5858-1/4-120 | 1/4 | 3/32 | 3/16 | 1.5/8 | 120 | 1.1/4 | £39.50 | 2-3 days | |
| 5858-3/8-120 | 3/8 | 1/8 | 1/4 | 1.5/8 | 120 | 1.1/4 | £42.66 | 2-3 days | |
| 5858-1/2-120 | 1/2 | 1/8 | 3/8 | 1.5/8 | 120 | 1.1/4 | £50.56 | 2-3 days | |
| 5858-5/8-120 | 5/8 | 5/32 | 1/2 | 1.7/8 | 120 | 1.1/4 | £61.62 | 2-3 days | |
| 5858-3/4-120 | 3/4 | 5/32 | 1/2 | 2.1/8 | 120 | 1.1/2 | £78.21 | 2-3 days | |
| 5858-1-120 | 1.00 | 3/16 | 1/2 | 2.1/2 | 120 | 1.1/2 | £102.70 | 2-3 days | |
| 5858-1.1/4-120 | 1.1/4 | 1/4 | 1/2 | 2.3/4 | 120 | 1.1/2 | £172.22 | 2-3 days |
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