0.0394" (1.00mm) x .120" LOC 2-Flute Square End Carbide End Mill, 1/8" Shank | M109

1.00mm (.0394") 2-Flute Square End Carbide End Mill – M109

This Kyocera solid carbide precision end mill features a 1.00mm (.0394") cutting diameter, .120" length of cut, 2-flute square end geometry, 1.50" overall length, and a standard 1/8" shank. It is designed for precision CNC milling, narrow slotting, profiling, pocketing, and detail machining where a small, accurate cutting diameter is required.

The .120" flute length provides useful cutting reach for small slots, profiles, contours, and pockets. Compared with shorter-flute tools of the same diameter, it accommodates greater cutting depth, although cutting forces and tool deflection must be carefully controlled.

The 2-flute up-cut spiral geometry helps evacuate chips during machining. Solid carbide construction provides rigidity and wear resistance, while the square end geometry is suitable for slots, pockets, contours, and flat-bottom features.

This tool is suitable for precision machining in plastics, acrylic, wood, fiberglass, composites, and selected soft non-ferrous metals such as aluminum and brass when appropriate feeds, speeds, workholding, and spindle runout control are maintained.

Common Applications

• Precision CNC milling and fine-detail machining
• Narrow slotting, profiling, and contouring
• Small pockets and flat-bottom features
• PCB milling and circuit board machining
• Plastic and acrylic machining
• Fine engraving and intricate detail cutting
• Wood and miniature model-making applications
• Fiberglass and composites with suitable cutting parameters
• Selected non-ferrous metals, including aluminum and brass, under controlled machining conditions

Features & Benefits

• 1.00mm (.0394") cutting diameter: Suitable for narrow features, miniature components, and precision CNC detail work.
• Kyocera solid carbide construction: Provides rigidity and wear resistance for precision machining.
• .120" flute length: Provides cutting reach for small slots, profiles, and pockets requiring additional depth.
• 2-flute geometry: Provides cutting edges with space for chip evacuation.
• Up-cut spiral flutes: Help move chips away from the cutting area.
• Square end: Suitable for slots, pockets, profiles, contours, and flat-bottom cuts.
• 1/8" shank: Compatible with appropriate precision CNC toolholders and collets.

Specifications

Choosing the Right 1.00mm Flute Length

We offer two 1.00mm diameter 2-flute square end mills with different cutting lengths:

• M109 – .120" LOC: Longer cutting section for precision slots, profiles, and pockets that require additional cutting depth.
• M109ST – .060" LOC: Stub-length cutting section for shallow machining where improved rigidity and reduced deflection are priorities.

For shallow cuts, consider our M109ST 1.00mm Stub-Length Carbide End Mill →. Choose the shortest flute length that accommodates your required cutting depth.

Additional Specialty Applications

This 1.00mm carbide end mill may also be useful for instrument makers, luthiers, model makers, jewelry work, and other precision detail applications requiring narrow CNC cuts. For fret slotting or other precise groove cutting, always verify the required slot width, material suitability, cutting depth, machine rigidity, and tool runout.

See our CNC Fret Slotting End Mills Collection for additional options.

Important Machining Considerations

Although larger than extremely small micro cutters, this 1.00mm end mill still requires careful machining. Use rigid workholding, precision toolholding, minimal spindle runout, appropriate spindle speeds, conservative cutting depths, and carefully selected feed rates. Excessive cutting forces or tool deflection may cause premature breakage.