0.1250" (1/8") x .870" LOC 2-Flute Ball Nose Carbide End Mill, 1/8" Shank | MB-230

0.1250" (1/8") x .870" LOC 2-Flute Ball Nose Carbide End Mill, 1/8" Shank – MB-230

This solid carbide ball nose end mill features a 0.1250" (1/8" / 3.175mm) cutting diameter, an extended .870" length of cut, 2-flute spiral geometry, 1.50" overall length, and a standard 1/8" shank. It is designed for precision CNC contouring, 3D profiling, relief carving, and machining curved or radiused features where additional cutting reach is needed.

The ball nose cutting profile is useful for producing smooth 3D surfaces, rounded contours, fillets, and detailed finishing passes. Its 2-flute up-cut spiral design helps evacuate chips upward during cutting while providing a practical balance of chip clearance and cutting strength.

The extended .870" LOC (approximately 22.10mm) provides additional cutting reach compared with shorter 1/8" ball nose end mills, including our MB-220 with .670" LOC. This makes MB-230 a useful choice for deeper contours, taller relief features, and applications requiring a longer fluted cutting section.

Manufactured from solid tungsten carbide, this tool provides rigidity and wear resistance for detailed CNC work. Its bright, uncoated cutting edges can be used in wood, plastics, acrylic, machining wax, and suitable soft non-ferrous metals when proper cutting parameters, chip evacuation, and workholding are used.

Common Applications

• 3D contouring and CNC profiling
• Deep relief carving and detailed engraving work
• Curved surfaces, fillets, and rounded features
• Mold, model, and prototype machining
• Wood carving and decorative CNC routing
• Plastic, acrylic, and machining wax cutting
• Aluminum, brass, and suitable soft non-ferrous metals
• Deeper contouring and finishing operations requiring extended flute length

Benefits

• Ball nose geometry produces smooth curved contours and radiused features
• Extended .870" LOC provides additional cutting reach for deeper profiles and 3D contours
• 2-flute design balances cutting strength and chip clearance
• Up-cut spiral geometry helps move chips away from the cutting area
• Solid carbide construction provides rigidity and wear resistance
• Uncoated cutting edges offer versatility for suitable materials
• Standard 1/8" shank fits many CNC routers, precision spindles, and collet systems

Specifications

Extended-Flute Machining Considerations

With a .870" cutting length and 1/8" diameter, MB-230 provides substantial cutting reach but has less cutting-section rigidity than shorter-flute alternatives. For best results, use rigid workholding, minimal tool extension from the collet, suitable stepovers and cutting depths, and effective chip evacuation. Avoid excessive side loading, especially when machining deeper contours or tougher materials.