6mm Shrink Fit, Shrinker CAT40 metric end mill holder

6mm(ID diameter) x 15mm(nose end diameter) x 120mm(Gage Length)

* Maximum 0.0002" TIR or better. * Balanced to G2.5/25000RPM.* 360 degree tool grip along the entire length of bore resulting in an evenly distributed clamping force and superior concentricity.* Ideal for end milling, drilling and other critical rotary tool applications.* No need wrenches, Collets, set screws and other accessories.* Coolant thru.*  5/8"-11  thread

larger diameter back near the base of the tool: 30mm