CoroCut MB (minibar) is focusing on internal high precision grooves in holes down to 10mm diameter. CoroCut MB now offers a wide range of insert widths from 0.7mm for circlip grooves and different insert sizes for shallow and deep grooves. Additionally the programme offers inserts for turning and threading. The inserts can be used in all application areas but are especially suited to steel and stainless steel operations. The boring bars are designed with internal cutting fluid supply directed at the cutting edge via two nozzles to ensure effective chip evacuation and sufficient cooling.