Carbide Ball Nose Insert for Aluminum

Carbide Ball Nose Insert – Aluminum Grade

The Stiger carbide ball nose insert for aluminum is a precision-ground, replaceable cutting insert designed for profiling, 3D contouring, and mould machining in aluminum and non-ferrous materials. Manufactured from premium micro-grain carbide with a polished, razor-sharp cutting edge, it’s engineered for the high cutting speeds and free-cutting action that aluminum machining demands.

Engineered for aluminum and non-ferrous machining

Aluminium requires a fundamentally different cutting edge to steel. The uncoated, highly polished insert surface and sharp edge geometry prevent built-up edge — the most common cause of poor finishes and premature failure when machining aluminium. Chips flow freely off the polished rake face, allowing higher speeds and feeds while maintaining an excellent surface finish. Ideal for aluminium alloys, copper, brass, and other non-ferrous materials, as well as plastics.

Superior surface finishes

The combination of a keen cutting edge and polished geometry produces bright, smooth surfaces straight off the tool — reducing or eliminating the need for secondary finishing on visible and functional surfaces. Perfect for mould work, prototypes, and production parts where finish quality matters.

Replaceable insert economy

When the cutting edge wears, simply replace the insert — not the entire tool. Each insert locates on the precision-ground seat of the Stiger steel ball nose shank for accurate, repeatable positioning and consistent runout. You get the performance of a solid carbide ball nose end mill at a fraction of the ongoing tooling cost, especially in larger diameters.

Accurate ball geometry

The full radius ball nose geometry is precision-ground for dimensional accuracy, ensuring true profiles on curved and contoured surfaces. Ideal for copy milling, 3D profiling, semi-finishing and finishing of mould cavities and cores, ramping, and slotting where an accurate radius is critical.

Typical applications

Aluminium mould and pattern machining, copy milling, 3D contouring and profiling, finishing of sculptured surfaces, ramping, and slotting in aluminium alloys, copper, brass, non-ferrous metals, and plastics.

Available sizes

Available in sizes to match the Stiger steel ball nose shank range – 10mm, 12mm, 16mm, 20mm, and 25mm diameters. Always pair the insert with the matching shank diameter for correct seating and clamping.