DMGMORI SL403 Factory 2.5 Boring Bar Holder -T10055 Cast Iron = best dampening
DMGMORI SL403 Factory 2.5 Boring Bar Holder -T10055 Cast Iron = best dampening vs cheaper steel holders used today. Some light surface rust and knicks due to being stored in warehouse. I would personally lightly stone the bottom before mounting to ensure no dings for maximum surface contact and dampening. Has been sprayed for light surface rust.