Devlieg Microbore RGA-302 Gear Adjust Boring Ring & 50 Taper Adapter

BRAND: DEVLIEG MICROBORE GEAR ADJUST PART# RGA-302 BORING RANGE WITH CARTRIDGE LISTED: 100-BS090-TN4F (5.50" to 6.54") 100-BS090-TN3F (5.12" to 6.16") 10A5 (5.38" to 7.38") 10A6 (6.00" to 8.00")