CME Shrink Fit, Shrinker CAT40 end mill holder.
ID diameter: 1/2"
Gage Length: 3.15”
Tip nose OD diameter: 0.945”
Holding portion largest OD diameter: 1.259”
* 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 tru.* 5/8"-11 thread.