FeaturesIndexable carbide boring bar for VBMT 80° insert geometry, C-type clamping, right-hand (R) configuration. Rigid steel bar for internal turning and boring on CNC and manual lathes.How to UseMount the shank in the boring bar holder or tool post, set the overhang to the minimum needed for bore depth to reduce vibration, then engage for internal turning with a VBMT insert seated in the pocket.SpecificationsShank sizes: S25S, S32T. Insert type: VBMT. Hand: Right (R). Material: hardened alloy steel body.