12 mm size provides a precise interface for compatible power tool assemblies. Model D1-12 is a customizable power tool part designed for replacement or upgrade. Type: Power Tool Parts. Customized: Yes. Key benefits - Customization enables a tailored fit and performance to match your tool requirements - Reliable replacement for tools that use a 12 mm component - Supports ongoing operation and tool longevity with a compatible interface Compatibility and use - Fits tools that require a 12 mm interface; identified by model D1-12 - Suitable for replacement, maintenance, and optimization of power tools Applications - Replacing a worn or missing 12 mm component in drills, rotary tools, or other power tools that use a 12 mm interface - Upgrading a tool setup with a customized D1-12 part to achieve preferred fit or performance - Refurbishing or servicing workshop tools that specify the D1-12 configuration