Custom Cutting Diameter: Designed according to client specifications (e.g., φ950, φ1050, etc.);

Critical Structure Reinforcement: Key structural parameters are strengthened based on client requirements (e.g., increased wall thickness, thickened base plates, etc.);

Custom Wing Configuration: Designed with a specific number of wings according to client needs (e.g., two-wing underreamers, three-wing underreamers, etc.); Custom Base Configuration: Available in single-base or double-base designs as per client requirements;

Custom Square Head Dimensions: The tool's square head dimensions are customized to match the client's drill rod specifications (typically 130×130, 150×150, 200×200, etc.);

Custom Limit Hole Quantity: Designed with multiple limit holes as per client requirements to accommodate underreaming operations across various diameters;