Micro 100 BMR-021-2 0.021in 2-Flute Carbide Ball End Mill
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The Micro 100 BMR-021-2 is a new, solid carbide ball nose end mill from Micro 100's "Super Carbide" line, manufactured in the USA. Decoding the part number: BMR = Ball Mill, Right-Hand Cut; 021 = 0.021 in (0.533 mm) cutting diameter; 2 = 2 flutes. This is a sub-millimeter micro end mill ground from Micro 100's submicron-grain carbide substrate, designed for high-precision contouring, profiling, and 3D surface milling in hardened steels, stainless, titanium, aluminum, and non-ferrous materials on CNC machining centers and high-speed spindles. The uncoated bright carbide finish visible in the photo is characteristic of Micro 100's standard BMR series; the tapered neck profile provides rigidity in deep-pocket micro-milling applications while minimizing deflection at the extremely small cutting diameter.
Product Specifications
| Brand | Micro 100 |
| Part Number (MPN) | BMR-021-2 |
| Series | BMR – Ball Mill, Right-Hand Cut |
| Cutting Diameter | 0.021 in (0.533 mm) |
| Number of Flutes | 2 |
| End Type | Ball Nose |
| Cut Direction | Right-Hand |
| Material | Submicron-grain solid carbide |
| Coating | Uncoated (bright) |
| Shank Diameter | 1/8 in (3.175 mm) |
| Country of Origin | USA |
| Condition | New |