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Carmex Chamfering End Mill - 90° Solid Carbide Countersink - 3mm - K20 Coated
| Shank Diameter | 3 |
| Web Thickness | 0.2 |
| Overall Length | 38 |
| Number of Flutes | 4 |
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Description
The Carmex Chamfering End Mill is a precise, 3 mm diameter tool designed for clean 90° countersinks and chamfers, ideal for professionals and serious hobbyists who value accuracy and repeatable results.
- Diameter: 3 mm for compact, precise chamfering across a range of hole sizes
- Angle: 90° chamfer/countersink geometry to deliver crisp bevels and flush countersinks
- Material: Solid carbide with CR3 Ultra-Fine grade for high hardness, toughness, and wear resistance
- Coating: PVD-based coating with K20 formulation for enhanced cutting performance and tool life
- Cutting Edges: Sharp, precisely engineered geometry for clean, accurate finishes and minimal burrs
- Material Versatility: Effective on a broad range of materials, including aluminium and non-ferrous alloys, stainless steels, and titanium
This end mill is built to maintain cutting edge stability under challenging cuts, reducing chatter and extending tool life in demanding cycles. The 90° countersink enables consistent seating and smooth mating surfaces, improving both appearance and assembly performance. With its advanced carbide grade and modern coating, you’ll achieve repeatable chamfers and countersinks, even in tougher materials, making it suitable for prototyping and production setups alike. Whether you’re prepping holes for fasteners, creating deburred edges, or finishing intricate components, this tool delivers reliable, high-quality results.
Part Numbers
- Protool Part Number
- MC03DA90K20
- Brand
- Carmex
- Category
- Countersink and Counterbore
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: Carmex Chamfering End Mill - 90° Solid Carbide Countersink
View full collection →You are viewing MC03DA90K20. Click any other SKU to view its full details.
| Product SKU | Shank Diameter | Web Thickness | Overall Length | Number of Flutes | Angle | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MC03DA90CR3 | 3 | 0.2 | 38 | 4 | 90 | £33.86 | 5 days | |
| MC04DA90CR3 | 4 | 0.3 | 50 | 4 | 90 | £35.91 | 5 days | |
| MC05DA90CR3 | 5 | 0.4 | 50 | 4 | 90 | £37.06 | 5 days | |
| MC06DA90CR3 | 6 | 0.5 | 57 | 4 | 90 | £39.26 | 5 days | |
| MC08DA90CR3 | 8 | 0.6 | 63 | 4 | 90 | £51.10 | 5 days | |
| MC10DA90CR3 | 10 | 0.8 | 72 | 4 | 90 | £66.44 | 5 days | |
| MC12DA90CR3 | 12 | 1 | 83 | 4 | 90 | £81.05 | 5 days | |
| MC03DA90K20 Viewing | 3 | 0.2 | 38 | 4 | 90 | £26.01 | 5 days | |
| MC04DA90K20 | 4 | 0.3 | 50 | 4 | 90 | £27.59 | 5 days | |
| MC05DA90K20 | 5 | 0.4 | 50 | 4 | 90 | £28.46 | 5 days | |
| MC06DA90K20 | 6 | 0.5 | 57 | 4 | 90 | £30.17 | 5 days | |
| MC08DA90K20 | 8 | 0.6 | 63 | 4 | 90 | £39.24 | 5 days | |
| MC10DA90K20 | 10 | 0.8 | 72 | 4 | 90 | £51.03 | 5 days | |
| MC12DA90K20 | 12 | 1 | 83 | 4 | 90 | £62.24 | 5 days |
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