Micro-machining
The most accurate carbide miniatures on the planet.
SS stub-length and SR standard-length micro end mills for extreme precision.
.005"
smallest cutting diameter
every .001"
standard sizes to .062"
.0002"
hand-selected to any diameter
At miniature scale the edge geometry you can't see with the naked eye decides whether the tool holds size. RobbJack grinds SS and SR micro end mills in every .001" increment, with tolerances held in microns — when nothing less will cut it.
Every .001" diameter from .005" to .062" is a standard size — and if your job needs something in between, we hand-select to any diameter to the nearest .0002". A .0376" tool is a regular order, not a special.
Why it wins
- Every .001" diameter from .005" to .062" is standard.
- Hand-selected to ANY diameter in .0002" steps under .062" — e.g. a .0376" tool.
- Primary relief angles ground to maximize machining quality.
- CVD diamond coating available for abrasive work.
- SS stub length for rigidity; SR standard length for reach.
Best for
MEMS & nanotechnologyDental & medicalElectronicsDie/mold detail
190+ miniature end mills — start here
See all in the Tool Finder →- MSR-2-0250.3mm Dia 2-Flute Metric End Mill 0.8mm LOC, 3mm Shank, 38mm OAL
- MSR-2-0300.3mm Dia 2-Flute Metric End Mill 0.9mm LOC, 3mm Shank, 38mm OAL
- MSR-2-0350.4mm Dia 2-Flute Metric End Mill 1.1mm LOC, 3mm Shank, 38mm OAL
- MSR-2-0400.4mm Dia 2-Flute Metric End Mill 1.2mm LOC, 3mm Shank, 38mm OAL
- MSR-2-0450.5mm Dia 2-Flute Metric End Mill 1.4mm LOC, 3mm Shank, 38mm OAL
- MSR-2-0500.5mm Dia 2-Flute Metric End Mill 1.5mm LOC, 3mm Shank, 38mm OAL
- MSR-2-0550.6mm Dia 2-Flute Metric End Mill 1.7mm LOC, 3mm Shank, 38mm OAL
- MSR-2-0600.6mm Dia 2-Flute Metric End Mill 1.8mm LOC, 3mm Shank, 38mm OAL
- MSR-2-0650.7mm Dia 2-Flute Metric End Mill 2mm LOC, 3mm Shank, 38mm OAL
- MSR-2-0700.7mm Dia 2-Flute Metric End Mill 2.1mm LOC, 3mm Shank, 38mm OAL
- MSR-2-0800.8mm Dia 2-Flute Metric End Mill 2.4mm LOC, 3mm Shank, 38mm OAL
- MSR-2-1001mm Dia 2-Flute Metric End Mill 3mm LOC, 3mm Shank, 38mm OAL
- MSR-2-1501.5mm Dia 2-Flute Metric End Mill 4.5mm LOC, 3mm Shank, 38mm OAL
- MSR-2-050-BN0.5mm Dia 2-Flute Metric End Mill 1.5mm LOC, 3mm Shank, 38mm OAL, 0.25mm CR
- MSR-2-060-BN0.6mm Dia 2-Flute Metric End Mill 1.8mm LOC, 3mm Shank, 38mm OAL, 0.3mm CR
- MSR-2-070-BN0.7mm Dia 2-Flute Metric End Mill 2.1mm LOC, 3mm Shank, 38mm OAL, 0.35mm CR
- MSR-2-080-BN0.8mm Dia 2-Flute Metric End Mill 2.4mm LOC, 3mm Shank, 38mm OAL, 0.4mm CR
- MSR-2-100-BN1mm Dia 2-Flute Metric End Mill 3mm LOC, 3mm Shank, 38mm OAL, 0.5mm CR
- MSR-2-150-BN1.5mm Dia 2-Flute Metric End Mill 4.5mm LOC, 3mm Shank, 38mm OAL, 0.75mm CR
- MSR-4-0800.8mm Dia 4-Flute Metric End Mill 2.4mm LOC, 3mm Shank, 38mm OAL
- MSR-4-1001mm Dia 4-Flute Metric End Mill 3mm LOC, 3mm Shank, 38mm OAL
- MSR-4-1501.5mm Dia 4-Flute Metric End Mill 4.5mm LOC, 3mm Shank, 38mm OAL
- MSS-2-0150.2mm Dia 2-Flute Metric End Mill 0.2mm LOC, 3mm Shank, 38mm OAL
- MSS-2-0200.2mm Dia 2-Flute Metric End Mill 0.3mm LOC, 3mm Shank, 38mm OAL
Put a RobbJack miniature end mill to work.
Browse the line in the Tool Finder, or let our engineers spec it for your part.