Genmitsu MC40A — Flat Upcut 2-Flute (Titanium)
Genmitsu
Overview
2-flute upcut spiral end mill with TiN (titanium nitride) gold coating. Shank: 1/8in (3.175mm). Cutting dia: 1/8in. Flutes: 2 upcut. Max RPM: 30,000. TiN gold coating is harder than bare carbide.
Properties
Difficulty
beginner
Pros
- Harder coating than nano blue — better for dense materials
- More heat-tolerant
- Gold color makes it easy to distinguish from nano blue
- Included in MC40A set
Cons
- Same limitations as nano blue for aluminum
- Slightly more torque demand — run 9000–10000 RPM vs max
Best For
- Softwood (pine
- poplar
- cedar)
- MDF
- plywood
- general hobby CNC use
- cost-effective high-volume softwood runs
Avoid For
- Aggressive hardwood machining (prefer TiAlN nano blue)
- acrylic (use O-flute)
- aluminum
Storage
Dry storage.
Brands
Genmitsu (SainSmart)