Product Specifications:
This 3‑flute solid carbide end mill is specifically engineered for high‑speed aluminum machining with extra length for deeper cavities. The mirror‑polished flutes create an ultra‑smooth, low‑friction surface that prevents aluminum adhesion (built‑up edge), ensuring superior chip evacuation and a mirror‑like finish on workpieces. The 45° high helix angle further enhances chip flow, making it ideal for slotting, contouring, and ramp‑down operations on CNC machining centers.
The 5mm cutting diameter features a straight shank of the same size for accurate clamping. With an extra‑long overall length of 65mm and flute length of 15mm, this end mill provides extended reach for deep cavity milling in small aluminum parts, electronic enclosures, automotive trim, and general aluminum fabrication. The 3‑flute geometry offers large chip gullets, reducing clogging and heat generation in soft, sticky aluminum.
Custom & Non-Standard Sizes Available: We offer custom diameters (e.g., 5.5mm, 7mm, 9mm, 11mm, 13mm, 15mm, 17mm, 19mm), overall lengths up to 150mm, shank diameters (reduced or enlarged), flute lengths, corner radii (R0.2‑2.0), and optional coatings (DLC, ZrN). No minimum order quantity for non‑standard sizes – simply provide your dimensions for a quick quote.
For mirror‑finish, deep‑cavity aluminum milling or any custom requirement, this extra‑long polished 3‑flute end mill delivers outstanding performance. Contact us for custom orders.
📏 Standard sizes are listed on our size chart page. Need a non‑standard diameter, length, or shank? Custom sizes are also available – just tell us your requirements.

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