Kaiser 6158-1652 CAT50 Tool Holder, 8620 Steel, G2.5 @ 20K RPM, .0002 Concentricity

The Kaiser 6158-1652 is a CAT 50 modular tool holder designed for CNC milling and metalworking applications. This modular adapter features a CAT50 spindle type and is compatible with the KPT Kaiser modular system, specifically identified with the manufacturer part number 6158-1652. Technical specifications for this series include construction from 8620 alloy steel with all critical surfaces precision ground and case hardened to 54-58 RC or 56-58 RC. The CAT50 interface typically utilizes a 1 inch x 8 rear thread for pull studs and is coolant-through capable. These holders are balanced to G2.5 at 20,000 RPM with a concentricity of .0002 or less. The modular design allows for versatility in tool changes and integration within a larger machining assembly. Related models in this series often feature specific projection lengths and modular connections such as KAB5, while this specific unit is designated as a CAT 50 modular holder for precision toolholding requirements. Year of manufacture is not available.