Key benefits Reliable drilling torque: Made from steel with hardness and toughness, the arbor delivers strong torsion for efficient, consistent drilling under load. Longlasting finish: The entire surface is electroplated to improve wear resistance and reduce surface corrosion, extending service life in regular use. Stable, accurate performance: Precision machining and fine control processing produce consistent concentricity and runout suitable for accuracy machine tool work. Broad compatibility: Engineered for spindle tools that accept an MT4 taper, the arbor fits standard MT4 spindles for practical use across machines. What this solves Reduces wobble and misaligned holes by providing a stiffer, more concentric connection between drill and spindle. Lowers frequency of arbor replacement and downtime thanks to a wearresistant electroplated surface. Supports precision machining tasks where consistent hole size and placement matter. Key specifications and attributes Material: Steel — hardness, toughness, weldable. Surface treatment: Full electroplating for enhanced wear resistance. Compatibility: MT4 taper — fits spindle machine tools with MT4 taper. Function: Drill arbor for mounting drilling tools and delivering torsional force from spindle to tool. Typical applications Precision work: Use in toolrooms and job shops for accurate holemaking in fixtures, jigs, and components where repeatability and concentricity are required. Production drilling: Suitable for production lines using MT4equipped spindle machines, providing durable performance under frequent drilling cycles. Maintenance and retrofit: or upgrade existing MT4 arbors in drilling machines, milling machines, and CNC equipment to restore stable, accurate drilling. If you need a robust, wearresistant arbor that maintains precision on MT4 spindles, this steel, electroplated drill arbor delivers the torsion, durability, and accuracy for professional machinetool work.