Omega Products ER40 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 21mm Face Mill Arbors - Anti-Vibration Unequal Index Flutes for Efficient

Unequal Index Flutes for Efficient Chip Emission: The unequal flute spacing promotes effective chip evacuation and contributes to a smoother surface finish on challenging materials

Broad cutter compatibility (M8–M16): Enables use with a wide range of milling cutters without swapping arbors

With a 3 mm diameter and a tight R0

these extensions let you tackle longer workpieces and challenging setups without sacrificing accuracy

while the stub-cut geometry offers stability during shallow cuts and in restricted cavities

Omega Products ER40 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 21mm Face Mill Arbors - Anti-Vibration Unequal Index Flutes for EfficientEngineered for precision CNC work, the Omega ER40 Collet with highpressure coolant sealing delivers ultra stable toolholding and reliable cooling. Designed for engineers, machinists, fabricators, and serious hobbyists, it clamps round shanks from 3 to 26 mm and supports demanding cutting conditions with an integral metal seal. Note: newer versions have no rubber seal on the nose, reducing maintenance and simplifying reliability. Ultra precise run out