MaxxMacro 54 Stainless Control Ruler Master Performance comes fully assembled and ready to use. This product is 100% cross-compatible with the System 3R Macro OEM system. Check mandrel with ground C-reference for setting MaxxMacro chucks. MaxxDesign Exclusive Features: Includes MaxxMacro 54 Performance Pallet 100% cross-compatible with OEM system Product Information: The MaxxMacro 54 High Performance Stainless Control Ruler is a precision alignment tool designed for 100% cross compatibility with System 3R-656.1 Control Ruler and all Macro-compatible products. Built with a ground C-reference, it ensures accurate mandrel checking and reliable chuck setup. Engineered for high performance, this control ruler delivers a repetition accuracy within 0.002 mm. It comes mounted on a MaxxMacro 54 Rust-Proof Performance Pallet, providing both stability and long-lasting durability. Like all MaxxMacro masters and gauges, it includes a Quality Certificate of calibration for full traceability and quality assurance.