Big Kaiser Releases Smallest Yet EWN Boring Heads

Big Kaiser Precision Tooling has released two smaller sizes of its EWN Smart Damper precision boring heads, which it says eliminate vibrations in deep-hole finish boring with a patented damping system. The additions mark the first time the EWN Smart Damper has been available in diameters below 1.260", down to 0.787". The CK1 head has a length of 3.937" and the CK2 4.921".

Big Kaiser’s modular CK/CKB system allows for versatility in the length of tooling combinations — up to a maximum of 10 times diameter — and the company says they can run on nearly every major spindle interface. All tools are coolant-through and have three different insert holder options per head size. The EWN analog head features a dial with .0005"/div setting accuracy (.0001" with the Vernier scale). 

The integral design of these Smart Damper heads shortens the distance from the damping mechanism to the cutting edge, which is the source of vibration. This produces higher damping effects to the tool assembly and minimizes chatter and vibration, resulting in what Big Kaiser says are better surface finishes and improved metal removal rates.