Anti-vibration mechanism reduces chattering ● Adopting a special damper mechanism to suppress chattering for large diameter bars with long overhang of L/D=5 to 8.● Replaceable heads enable a wide selection of positive and negative inserts.● Internal coolant supply improves chip evacuation and tool life. Cutting Performance Smart Damper™ Combination Example *Smart Damper™ is a registered trademark of BIG DAISHOWA Co., Ltd.