The PH HORN RBU105.0750.12.2 is a specialized precision tool holder manufactured by Hartmetall Werkzeugfabrik Paul Horn GmbH. It is designed for internal grooving and profiling applications, specifically for 3/4" shank diameter setups.

Primary ApplicationsInternal Grooving: Used for cutting grooves on the inside of cylindrical parts.Internal Profiling: Used to shape internal profiles.Small Bore Machining: Due to its design, it is generally used for internal work where space is constrained (the 105 series indicates a small, precise boring tool system).