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Carmex Chamfering End Mill - 90° Solid Carbide Countersink - 5mm - K20 Coated

Carmex Chamfering End Mill - 90° Solid Carbide Countersink - 5mm - K20 Coated

SKU:MC05DA90K20

The Carmex Chamfering End Mill is a precision 90° countersink tool designed for machinists who need clean, consistent chamfers and countersinks across a variety of metals. Built from solid carbid... Read more ↓
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Shank Diameter5
Web Thickness0.4
Overall Length50
Number of Flutes4
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£28.46
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Carmex Chamfering End Mill is a precision 90° countersink tool designed for machinists who need clean, consistent chamfers and countersinks across a variety of metals. Built from solid carbide with advanced grades and coatings, it delivers durable performance and reliable edge quality for aluminum, stainless steel, and titanium applications.

  • Diameter and angle: 5 mm diameter with a 90° chamfer/countersink profile for precise edge finishing in a single pass.
  • Material: Solid carbide construction for rigidity, wear resistance, and long tool life in demanding materials.
  • Carbide grade: CR3 Ultra‑Fine carbide offers high hardness and toughness for stable cutting and reduced wear.
  • Coating technology: PVD coating provides enhanced heat resistance and cutting performance for high‑speed applications.
  • K20 carbide option: K20 sub‑micron carbide grade (uncoated) optimized for aluminium and non‑ferrous alloys, stainless steels, and titanium.
  • Application versatility: Designed for efficient countersinking and chamfering of a broad range of metals, enabling finish‑ready edges with fewer steps.
  • Edge geometry: Sharp cutting edges and precise geometry promote clean, burr‑free results and tight tolerances.

With the Carmex Chamfering End Mill, you gain precise control over edge finishing, reducing secondary operations and improving part aesthetics. The solid carbide core withstands repeated passings, while the CR3 grade and PVD coating contribute to longer tool life and consistent performance across challenging materials. The 5 mm diameter is ideal for small to medium countersinks and chamfers, making it a reliable choice for fixtures, jigs, and production runs as well as repair work. For best results, use appropriate feeds and speeds to minimize tool deflection and maximize finish quality.

Part Numbers

Protool Part Number
MC05DA90K20
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.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: Carmex Chamfering End Mill - 90° Solid Carbide Countersink

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You are viewing MC05DA90K20. Click any other SKU to view its full details.

Product SKUShank DiameterWeb ThicknessOverall LengthNumber of FlutesAnglePriceStock Order
MC03DA90CR3 30.238490£33.86 5 days
MC04DA90CR3 40.350490£35.91 5 days
MC05DA90CR3 50.450490£37.06 5 days
MC06DA90CR3 60.557490£39.26 5 days
MC08DA90CR3 80.663490£51.10 5 days
MC10DA90CR3 100.872490£66.44 5 days
MC12DA90CR3 12183490£81.05 5 days
MC03DA90K20 30.238490£26.01 5 days
MC04DA90K20 40.350490£27.59 5 days
MC05DA90K20 Viewing50.450490£28.46 5 days
MC06DA90K20 60.557490£30.17 5 days
MC08DA90K20 80.663490£39.24 5 days
MC10DA90K20 100.872490£51.03 5 days
MC12DA90K20 12183490£62.24 5 days

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