0.1250" (1/8") x .500" LOC 2-Flute Ball Nose Carbide End Mill, 1/8" Shank | MB-250

0.1250" (1/8") x .500" LOC 2-Flute Ball Nose Carbide End Mill, 1/8" Shank – MB-250

This solid carbide ball nose end mill features a 0.1250" (1/8" / 3.175mm) cutting diameter, .500" length of cut, 2-flute spiral geometry, ball nose cutting profile, 1.50" overall length, and a standard 1/8" shank. It is designed for CNC milling, 3D contouring, surface finishing, and precision machining of curved features.

The ball nose geometry creates a rounded cutting profile suitable for smooth contours, fillets, relief carvings, molds, and detailed three-dimensional toolpaths. The nominal ball radius is .0625" (1/16").

The 2-flute up-cut spiral design helps evacuate chips during machining, while the polished flutes provide a smooth flute surface that can support chip flow in suitable materials.

This tool is suitable for machining wood, plastics, acrylic, foam, composites, and soft non-ferrous metals such as aluminum, brass, and copper when appropriate feeds, speeds, workholding, and chip evacuation are used.

Solid tungsten carbide construction provides rigidity and wear resistance for precision CNC applications. This is a practical cutter for hobby CNC users, prototype shops, model makers, and general CNC milling operations.

Common Applications

• 3D contouring and surface finishing
• Relief carving and detailed CNC routing
• Mold and model making
• Machining curved surfaces, fillets, and radiused features
• Wood and engineered wood detail cutting
• Plastic and acrylic machining
• Aluminum, brass, copper, and suitable soft non-ferrous metals
• Composite and fiberglass machining with appropriate dust control
• Prototype machining and small-shop CNC work

Benefits

• Ball nose cutting profile for smooth curved surfaces and 3D contours
• 1/8" cutting diameter for versatile CNC detail work
• 2-flute geometry balances chip clearance and cutting strength
• Up-cut spiral direction helps evacuate chips upward
• Polished flutes support smoother chip flow
• .500" LOC provides useful cutting reach for profiling and contouring
• Solid carbide construction offers rigidity and wear resistance
• Standard 1/8" shank fits many CNC routers and precision collet setups

Specifications

Precision Machining Considerations

For best results, use rigid workholding, accurate tool alignment, minimal runout, and appropriate cutting parameters. Ball nose tools have lower effective cutting speed near the center of the rounded tip, so toolpath strategy and stepovers are particularly important during 3D finishing operations.