Features: Diamond pen is a new type of grinding wheel tool. By powder metallurgy hot pressing process, the alloy die has good abrasion resistance and high strength. The diamond is firmly set in the bud, not easy to fall off. The diamond particles are arranged in an alloy matrix according to certain requirements, and the use of diamond particles does not need to be quenched and renovated. To ensure the accuracy and surface finish of the machined parts and reduce the cost of the product. Application: dressing and shaping grinding wheel for all kinds of grinding machines. Specification: Material: Steel Total Length: 49mm/1.93inch Shank Diameter: 9mm Working End Diameter: 11mm Tip Diameter: 4mm Color: Silver Quantity: 1 PcNote: 1. Please allow 0-1cm error due to manual measurement. Pls make sure you do not mind before bidding.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Included:1 x Diamond Chest of Drawers