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. This tool allows for grinding into the inner gaps of the workpiece, making it suitable for materials like jade, gemstones, and . It offers fine sand abrasive, resulting in quick and tart grinding for a smooth and polished finish. 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. Simply attach the carving drill needle to a punching machine, and it is ready to be used. The 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 ., Weight: 0.01763698096 Pounds, Manufacturer: Wesafrae