Criterion CRIBORE super Precision CB2-TP-TA boring head with extension R8

  

Criterion CB2-TP-TA CRI-BORE super precision boring head. Super precision can adjust in. Great shape 2 overall diameter. Will bore from 2.060 to 3.320 diameters and includes R8 shank to fit your bridgeport. Uses 7/8-20 threads for extensions and shanks and could be changed for another type.