Specifications:* Red corundum grinding head. Red corundum grinding head.* Material: red corundum* Color: as picture shown* Shape: conical* Shank diameter: 6mm* Size: 16*39*6mm, 20*39*6mm, 25*38*6mm, 29*40*6mm* Applications: Metal abrasive tools are polished, polished and rust removed. The products are made of high-quality raw materials. The abrasives are sharp, wear-resistant, finely polished, not easy to leave burrs, wear-resistant and durable, and have a long service life.* Quantity: 1 pc Package includes: 1 * grinding head Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.