Carbide Ball Nose Insert for Steel

Carbide Ball Nose Insert – Steel Grade

The Stiger carbide ball nose insert is a precision-ground, replaceable cutting insert designed for profiling, 3D contouring, and mould & die machining in steel. Manufactured from premium micro-grain carbide with a wear-resistant coating, it delivers the edge strength and heat resistance needed for reliable performance in roughing and semi-finishing operations – from cavity work to sculptured surface machining.

Engineered for steel machining

The steel-grade carbide substrate and coating combination is optimised for the demands of machining carbon steels, alloy steels, and tool steels. The coating reduces friction and resists built-up edge, maintaining a sharp, stable cutting edge at higher cutting speeds and temperatures. The result is longer tool life, consistent surface finishes, and predictable performance across your production runs.

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 of mould cavities and cores, ramping, and slotting where an accurate radius is critical to the final part.

Typical applications

Mould and die cavity machining, copy milling, 3D contouring and profiling, semi-finishing of sculptured surfaces, ramping, and slotting in carbon steels, alloy steels, pre-hardened steels, and tool steels.

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.