More rigid than steel boring bars and tools and with extended edge life to maintain size. DR+0.04fal2l1Tmax-rD min5.000.21.94.414300.75.0Right-hand5.000.21.94.414300.75.0Left-hand5.000.21.94.419350.75.0Right-hand5.000.21.94.419350.75.0Left-hand7.000.22.86.319350.76.8Right-hand7.000.22.86.319350.76.8Left-hand ZLYCNC precision boring tools are always manufactured to specific customer specifications. Custom boring tools for roughing or finishing are designed and engineered to meet the project requirements---High Quality/Precision tools,delivery in a short time for you---Each products is inspected by ZOLLER measuring and inspected machine which import from GermanyIf you have any demand about carbide tools,please let us know and we shall be glad to make you offer.