The Wohlhaupter UPA-4/20899 is a Universal Boring and Facing Head designed for CAT40 taper shank machines. It is manufactured by Wohlhaupter and is a versatile toolholding accessory for cnc or manual machine. Tool is in excellent working condition.
Ready to be put to work. It appears the only thing missing is the adjustment t handle wrench.
You could use a regular Allen wrench for adjustment tho. Comes with the original box.