0.0500" (Nom. 1.25mm) x .125" LOC 2-Flute Ball Nose Carbide End Mill, 1/8" Shank | MB-170

0.0500" (Nominal 1.25mm) 2-Flute Ball Nose Carbide End Mill – MB-170

This 0.0500" (nominal 1.25mm) 2-flute ball nose solid carbide end mill features a .125" length of cut, 1.50" overall length, and a standard 1/8" shank. It is designed for precision CNC milling, 3D contouring, fine profiling, and detailed machining of small features and curved surfaces.

The ball nose cutting geometry provides a rounded cutting tip for machining smooth contours, fillets, radiused grooves, molds, and miniature three-dimensional features. Its 2-flute, up-cut spiral design helps evacuate chips while supporting controlled cutting in suitable materials.

Manufactured from solid tungsten carbide with an uncoated finish, this small-diameter cutter offers wear resistance and rigidity for detailed milling work. It can be used in appropriate plastics, acrylics, wood, composites, and non-ferrous metals such as aluminum and brass with suitable machining parameters.

Diameter note: The stated inch cutting diameter is .0500" (approximately 1.27mm). The 1.25mm designation is nominal. For precision-critical applications, verify the required cutting diameter before machining.

Common Applications

• 3D CNC contouring and surface finishing
• Small-radius fillets and curved profiles
• Miniature mold and model making
• Fine-detail engraving and relief machining
• Plastic and acrylic machining
• Wood carving and detailed CNC routing
• Aluminum, brass, and suitable non-ferrous materials
• Prototype components and precision hobby CNC work

Features & Benefits

• Ball nose geometry: Produces rounded features and smooth 3D contours.
• Small .0500" diameter: Suitable for fine detail and miniature machining.
• 2-flute construction: Balances cutting edges and chip clearance.
• Up-cut spiral flutes: Help remove chips from the cutting area.
• .125" LOC: Provides cutting reach for small features and shallow contours.
• Solid carbide: Offers rigidity and wear resistance.
• 1/8" shank: Fits many precision CNC routers and small-tool collet systems.

Specifications

Important Machining Considerations

Small ball nose end mills require careful control of spindle runout, feed rate, cutting depth, and workholding. The effective cutting speed decreases toward the center of the ball nose tip, so use appropriate machining parameters and avoid excessive cutting loads.

The rounded cutting end is intended for curved features and 3D contouring. For square internal corners and flat-bottom slots, a square-end mill is generally a more appropriate choice.