Vortex Carbide End Mill - 4 Flute Square Edge - TiSiN Coated - 3.5mm x 50mm

The Vortex Carbide End Mill combines precision engineering with proven durability for metalworking professionals who demand reliable, repeatable results. This 3.5mm square-edge cutter features a premium carbide core with TiSiN coating, engineered to handle demanding applications in steel, stainless steel, cast iron, and high-performance alloys. Whether you're pocketing, profiling, or finishing critical contours, this tool delivers the edge strength and thermal stability needed for both roughing and finishing passes without compromising dimensional accuracy or surface quality.

• Four-Flute Design for Superior Steel Performance: The four-flute geometry provides more cutting edges per rotation, enabling higher feed rates and smoother finishes compared to two-flute alternatives. This configuration distributes cutting forces evenly across more edges, reducing vibration and delivering cleaner pocket bottoms and perpendicular walls—especially critical when working with harder materials that demand stability and precision.
• TiSiN Coating Minimizes Heat and Wear: TiSiN coating is a high-performance PVD coating that provides superior hardness, thermal stability, and wear resistance. This advanced coating reduces friction during cutting, minimizes heat buildup at the flutes, and extends tool life significantly longer than uncoated carbide. The lives of the cutting tools coated with TiSiN were longer than those of the tools coated with TiAlN due to reduced abrasive wear.
• Premium Carbide Substrate for Rigidity and Longevity: Built from high-quality cemented carbide, this end mill offers superior hardness and resistance to wear across extended cutting cycles. The robust core maintains precision over longer tool life compared to standard tooling, reducing downtime and replacement frequency—delivering genuine cost savings for shops running continuous production or tackling challenging materials.

This end mill excels at maintaining tight tolerances and excellent surface finish through both roughing and finishing operations. The combination of TiSiN coating's heat resistance and the four-flute design's cutting stability makes it ideal for machinists working with heat-resistant materials or conducting high-speed operations where tool wear typically accelerates. Apply coolant during longer milling passes to maximize performance, use rigid workpiece clamping to eliminate runout, and adjust feed rates based on your machine's capabilities—this approach maximizes tool life and part quality while minimizing scrap.

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.