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Robert Charles Countersink - Deburring Tool - Through Hole Zero Flute 90° - 21.0mm Head Dia
| Head Diameter | 21.0 |
| Shank Diameter | 10 |
| Overall Length | 65 |
| Shank Length | 37.5 |
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Description
The Robert Charles Countersink – Deburring Tool – Through Hole Zero Flute 90° is a precision deburring tool designed to smooth and chamfer the edges of through holes with minimal chatter. Its zero-flute design delivers a chatter-free cutting action, producing clean edges and a high-quality surface finish, while helping to prevent tool grabbing. It features a 21.0 mm head diameter for durable, steady cutting on through-hole work.
This tool is suitable for a wide range of materials including steel, aluminium, plastics, and non-ferrous metals, making it a versatile choice for workshop, maintenance, and production environments where precise finishing is essential.
- Zero-Flute Design: Delivers chatter-free cutting for clean edges and a high-quality finish, while reducing the risk of tool grabbing during entry into through holes.
- 90° Through-Hole Countersink Geometry: Specifically shaped to efficiently deburr and chamfer through holes, delivering consistent, accurate edge preparation with each use.
- Wide Material Compatibility & Durable Construction: Optimized for steel, aluminium, plastics, and non-ferrous metals, built for reliable performance in demanding workshop and production environments.
Designed to streamline deburring workflows, this countersink helps you finish holes faster, reduce rework, and maintain uniform edge quality across a variety of materials. Its reliable, smooth operation supports steady production and maintenance tasks, delivering professional results with confidence.
Part Numbers
- Protool Part Number
- 5880-21.0-90
- 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 Countersink - Deburring Tool - Through Hole Zero Flute 90°
View full collection →You are viewing 5880-21.0-90. Click any other SKU to view its full details.
| Product SKU | Head Diameter | Shank Diameter | Overall Length | Shank Length | Inclusive Angle | Standard Cut Range | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| 5880-10.0-90 | 10.0 | 6 | 45 | 32.0 | 90 | 3-5 | £24.49 | 2-3 days | |
| 5880-12.5-90 | 12.5 | 8 | 48 | 32.0 | 90 | 4-8 | £25.28 | 2-3 days | |
| 5880-14.0-90 | 14.0 | 8 | 52 | 30.5 | 90 | 6-10 | £28.44 | 2-3 days | |
| 5880-16.0-90 | 16.0 | 10 | 56 | 36.0 | 90 | 7-12 | £33.97 | 2-3 days | |
| 5880-21.0-90 Viewing | 21.0 | 10 | 65 | 37.5 | 90 | 11-15 | £55.30 | 2-3 days | |
| 5880-25.0-90 | 25.0 | 10 | 65 | 36.0 | 90 | 13-20 | £69.52 | 2-3 days | |
| 5880-28.0-90 | 28.0 | 12 | 85 | 48.0 | 90 | 16-20 | £109.02 | 2-3 days | |
| 5880-35.0-90 | 35.0 | 15 | 102 | 56.50 | 90 | 21-25 | £191.18 | 2-3 days |
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