Designed for deep holes and hollowing out jade, this tool is perfect for achieving precise and intricate carving. It is recommended for use with a punching machine and requires water cooling for optimal results. Made of electroplated corundum and iron, this carving drill needle ensures long-lasting performance. The tartness and uniformity of the electroplated corundum particles enable faster and more efficient grinding. This tool allows for grinding deeper into the inner gaps of the workpiece, making it suitable for materials like jade, gemstones, and agate. It offers fine sand abrasive, resulting in quick and tart grinding for a smooth and polished finish. Simply attach the carving drill needle to a punching machine, and it is ready to be used. The lightweight design and ergonomic handle provide comfort and ease during operation. Product Name: Carving and lengthening punching needle rod; Material: Electroplated corundum + iron; Size: As Picture Shown; Color: Silver; Package Contents: 1 Engraving punch needle or 7 Engraving punch needle . Features: *Long and tartness Carving Drill Needle: This tool is designed for drilling deep holes in jade beads, pipes, or hollowing out jade. It is recommended to use this grinding needle on a punching machine to achieve optimal results. Requires water cooling during use. *High-quality Material: Made of electroplated corundum and iron, durability and long-lasting performance. The electroplated corundum particles are tartness and uniform, enabling faster and more efficient grinding. *Versatile Functionality: This tool can grind deeper into the inner gap of the workpiece, allowing for precise and intricate grinding. It is suitable for various materials such as jade, gemstones, and agate. *Fine Sand Abrasive: The grinding needle features fine sand abrasive, which offers tartness and fas