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Robert Charles Plain Shank Counterbore M35-HSS-E 5% Cobalt - #5 Cap Screw Size - 0.125 Pilot Size
| Cap Screw Size | #5 |
| Pilot Size | 0.125 |
| Cutting Diameter | 0.205 |
| Shank Size | 3/16 |
| Overall Length | 3 |
Learn more about Klarna
The Robert Charles Plain Shank Counterbore is a high-performance cutting tool designed for professionals who require precise, clean counterbores with dependable durability. Crafted from M35-HSS-E with 5% cobalt, it delivers excellent heat resistance and wear life for demanding metalworking tasks.
- Material: M35 HSS-E with 5% cobalt for enhanced heat resistance, edge strength, and extended cutting life.
- Shank Type: Plain shank designed for easy fitment in standard tool holders, supporting stable, repeatable machining.
- Cutting Geometry: Precision-ground edges optimized for clean, burr-free counterbores and efficient chip evacuation.
- Pilot Size: 0.125 in pilot to guide entry and promote accurate hole alignment during countersinking.
- Cap Screw Size: Compatible with #5 cap screw interfaces for flush-mount applications.
- Applications: Ideal for precision engineering, automotive assemblies, and general workshop use where durability and consistent results matter.
This counterbore is built to deliver repeatable depths and smooth faces, reducing finishing work and improving part fit. The cobalt-enhanced alloy maintains hardness at elevated temperatures, enabling more aggressive feeds without compromising edge life. The plain shank simplifies tool changes and minimizes setup time, helping you stay productive in both small shops and full-scale shops. Use it for precise bolt-hole counterboring in assemblies, brackets, and fixtures where reliable performance is essential.
| Cap Screw Size | #5 |
| Pilot Size | 0.125 |
| Cutting Diameter | 0.205 |
| Shank Size | 3/16 |
| Overall Length | 3 |
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 Plain Shank Counterbores M35-HSS-E 5% Cobalt
View full collection →You are viewing 5770-5-CLOSE FIT. Click any other SKU to view its full details.
| Product SKU | Cap Screw Size | Pilot Size | Cutting Diameter | Shank Size | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| 5770-4-CLOSE FIT | #4 | 0.112 | 0.186 | 5/32 | 3 | £33.97 | 2-3 days | |
| 5770-4-1/64 OVER | #4 | 0.127 | 0.202 | 5/32 | 3 | £33.97 | 2-3 days | |
| 5770-4-1/32 OVER | #4 | 0.143 | 0.217 | 5/32 | 3 | £33.97 | 2-3 days | |
| 5770-5-CLOSE FIT Viewing | #5 | 0.125 | 0.205 | 3/16 | 3 | £34.76 | 2-3 days | |
| 5770-5-1/64 OVER | #5 | 0.140 | 0.221 | 3/16 | 3 | £34.76 | 2-3 days | |
| 5770-5-1/32 OVER | #5 | 0.156 | 0.237 | 3/16 | 3 | £34.76 | 2-3 days | |
| 5770-6-CLOSE FIT | #6 | 0.138 | 0.228 | 7/32 | 3 | £34.76 | 2-3 days | |
| 5770-6-1/64 OVER | #6 | 0.153 | 0.244 | 7/32 | 3 | £34.76 | 2-3 days | |
| 5770-6-1/32 OVER | #6 | 0.169 | 0.260 | 7/32 | 3 | £34.76 | 2-3 days | |
| 5770-8-CLOSE FIT | #8 | 0.164 | 0.272 | 1/4 | 3 | £35.55 | 2-3 days | |
| 5770-8-1/64 OVER | #8 | 0.179 | 0.288 | 1/4 | 3 | £35.55 | 2-3 days | |
| 5770-8-1/32 OVER | #8 | 0.195 | 0.304 | 1/4 | 3 | £35.55 | 2-3 days | |
| 570-10-CLOSE FIT | #10 | 0.19 | 0.314 | 9/32 | 4.5 | £37.92 | 2-3 days | |
| 5770-10-1/64 OVER | #10 | 0.205 | 0.33 | 9/32 | 4.5 | £37.92 | 2-3 days | |
| 5770-10-1/32 OVER | #10 | 0.221 | 0.346 | 9/32 | 4.5 | £37.92 | 2-3 days | |
| 5770-1/4-CLOSE FIT | 1/4 | 0.25 | 0.382 | 5/16 | 4.5 | £41.87 | 2-3 days | |
| 5770-1/4-1/64 OVER | 1/4 | 0.265 | 0.398 | 5/16 | 4.5 | £41.87 | 2-3 days | |
| 5770-1/4-1/32 OVER | 1/4 | 0.281 | 0.414 | 5/16 | 4.5 | £41.87 | 2-3 days | |
| 5770-5/16-CLOSE FIT | 5/16 | 0.312 | 0.475 | 3/8 | 4.5 | £47.40 | 2-3 days | |
| 5770-5/16-1/64 OVER | 5/16 | 0.328 | 0.491 | 3/8 | 4.5 | £47.40 | 2-3 days | |
| 5770-5/16-1/32 OVER | 5/16 | 0.343 | 0.507 | 3/8 | 4.5 | £47.40 | 2-3 days | |
| 5770-3/8-CLOSE FIT | 3/8 | 0.375 | 0.572 | 1/2 | 5 | £63.99 | 2-3 days | |
| 5770-3/8-1/64 OVER | 3/8 | 0.39 | 0.588 | 1/2 | 5 | £63.99 | 2-3 days | |
| 5770-3/8-1/32 OVER | 3/8 | 0.406 | 0.604 | 1/2 | 5 | £63.99 | 2-3 days | |
| 5770-7/16-CLOSE FIT | 7/16 | 0.437 | 0.663 | 1/2 | 5 | £85.32 | 2-3 days | |
| 5770-7/16-1/64 OVER | 7/16 | 0.452 | 0.679 | 1/2 | 5 | £85.32 | 2-3 days | |
| 5770-7/16-1/32 OVER | 7/16 | 0.468 | 0.695 | 1/2 | 5 | £85.32 | 2-3 days | |
| 5770-1/2-CLOSE FIT | 1/2 | 0.5 | 0.757 | 1/2 | 6 | £109.02 | 2-3 days | |
| 5770-1/2-1/64 OVER | 1/2 | 0.515 | 0.773 | 1/2 | 6 | £109.02 | 2-3 days | |
| 5770-1/2-1/32 OVER | 1/2 | 0.531 | 0.789 | 1/2 | 6 | £109.02 | 2-3 days | |
| 5770-5/8-1/64 OVER | 5/8 | 0.641 | 0.961 | 5/8 | 6 | £142.20 | 2-3 days | |
| 5770-5/8-CLOSE FIT | 5/8 | 0.625 | 0.945 | 5/8 | 6 | £142.20 | 2-3 days | |
| 5770-5/8-1/32 OVER | 5/8 | 0.656 | 0.977 | 5/8 | 6 | £142.20 | 2-3 days | |
| 5770-3/4-CLOSE FIT | 3/4 | 0.766 | 1.187 | 3/4 | 7 | £211.72 | 2-3 days | |
| 5770-3/4-1/32 OVER | 3/4 | 0.781 | 1.203 | 3/4 | 7 | £211.72 | 2-3 days | |
| 5770-7/8-CLOSE FIT | 7/8 | 0.891 | 1.375 | 7/8 | 7 | £255.96 | 2-3 days | |
| 5770-7/8-1/32 OVER | 7/8 | 0.906 | 1.391 | 7/8 | 7 | £255.96 | 2-3 days |
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