Example for Highest Metal Removal Rates (MRR) The VariMill II ER proprietary design with unequal flute spacing and unique core geometry for chatter-free machining enables slotting operations in titanium up to 1 x D. VariMill II™ ER SAFE-hOCK® SAFE-hOCK® The safety belt for high-performance solid carbide end mills provide form-closed clamping with high accuracy and helical grooves for length adjustment. widia.com O215