Vortex Carbide End Mill - 4 Flute Square Edge - TiSiN Coated - 20mm x 150mm

The Vortex Carbide End Mill is a professional-grade cutting tool built for precision metalworking. Whether you're running production jobs in a machine shop or tackling custom projects in a garage, this 4-flute cutter delivers the performance and reliability you need for consistent results on steels, stainless steels, cast iron, and advanced alloys. Engineered from premium carbide with a TiSiN nano-coating for excellent heat resistance and extreme hardness, ideal for high-speed cutting of pre-hardened steels, this end mill excels at both roughing and finishing tasks while maintaining the precision required for accurate pockets, slots, and contours.

• Premium Carbide with TiSiN Heat-Resistant Coating: TiSiN coating provides excellent oxidation resistance, achieving high-speed cutting of hard steels with significant improvements in tool life and lower tooling costs. The coating generates less friction during cutting, reducing heat buildup and extending the intervals between tool replacements so you spend less time changing tools and more time producing parts.
• 4-Flute Design for Superior Stability and Finish: 4-flute end mills are designed for harder materials such as steel, providing increased tool strength, smoother finishes, and higher feed rates, with strong resistance to heat and ability to cut more efficiently through the material. The square-edge geometry delivers crisp, clean corners and precise pocket walls across all your milling operations.
• Dependable Rigidity for Production Confidence: The 4-flute configuration is the undisputed workhorse for steel machining—with four cutting edges, the tool is much stronger because its core diameter is larger, and the cutting load is distributed across more flutes, leading to a smoother cut, better surface finish, and longer tool life.

When every part matters, tool reliability matters. This carbide end mill cuts down on unexpected downtime, minimizes tool wear during long production runs, and consistently produces the dimensional accuracy and surface quality your customers expect. From face milling deep pockets in steel to finishing contoured surfaces in high-performance alloys, the square-edge profile and robust carbide core work together to reduce vibration, eliminate chatter, and deliver repeatable results that keep your workflow moving forward.

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.