Omega Products ER40 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 21mm Face Mill Arbors - Anti-Vibration while the stub-cut geometry offers

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

Three-flute design for efficient chip evacuation: The 3‑flute geometry enhances chip clearance and reduces cutting forces

This end mill helps you streamline finishing work—delivering smoother mold surfaces

repeatable results across a variety of small to mid‑size features

Omega Products ER40 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 21mm Face Mill Arbors - Anti-Vibration while the stub-cut geometry offersEngineered 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