Rigibore MBX boring units are precision units for mounting into standard or special boring tools.
The standard unit, used for roughing and semi-finishing operations, it is mounted directly into a tool hole in the bar or holder and has a minimum bore size of 15.87mm.
The top adjusting 'TR' unit, used for light roughing and fine finishing operations, it is mounted directly into a tool hole in the bar or holder.
Only used for finishing operations, this top adjusting unit is bush mounted, and is designed to fit both new and existing holes in bars or holders.
These fine boring units are designed for building into boring bars which are dedicated to (or about) a specific bore size.