Tender For corrigendum : supply of anti vibration boring bar - anti vibrational silent , central cartridge guiding , peripheral cartridge guiding , central insert to suit item , peripheral insert to suit , cartridge screw to suit , insert screw to suit item 4 , torque wrench screw driver , shoulder shell high feed , insert to suit item 9 , insert screw to suit , torque wrench screw , back face milling , insert to suit item