Spectra Micro Boring Bars has been designed, developed using our patented 'UNICART HOLDING SYSTEM' Spectra boring bars are hardened and ground to very close run out. Spectra boring bar can be supplied with any kind of holding tapers like ISO,BT,CAT, JIS etc and with any configurations like single cartridge, twin cartridge, solid shank, through coolant etc. Any type of insert geometry, chip breaker, rake angle as per customer specification can be supplied.
Extreme rigidity, simple design, long tool life, good repeatability and ease of use and setup are just some of the advantages in our Micro Boring bars.

Spectra Micro Boring Bars has been designed, developed using our patented 'UNICART HOLDING SYSTEM' Spectra boring bars are hardened and ground to very close run out. Spectra boring bar can be supplied with any kind of holding tapers like ISO,BT,CAT, JIS etc and with any configurations like single cartridge, twin cartridge, solid shank, through coolant etc. Any type of insert geometry, chip breaker, rake angle as per customer specification can be supplied.
Extreme rigidity, simple design, long tool life, good repeatability and ease of use and setup are just some of the advantages in our Micro Boring bars.