Precision boring heads, EWN and EWD Smart Damper, eliminate vibration in deep-hole finish boring. Distance from damping mechanism to cutting edge (vibration source) produces damping effects to tool assembly to minimize chatter/vibration and thereby promote surface finish quality as well as metal removal rates. While EWN heads feature dial with Ø.0005 in./div setting accuracy (.0001 in. w/Vernier), EWD heads have digital screen that shows adjustments to accuracy of Ø.00005 in.