Electric Drilling Spindle Conversion Steel Adapter for Grinding Polishing Shaft Motor Bench Grinder Shaft Extension Q81COOTDTYCotive Features: 100% Brand New and High Quality Made of high-speed steel, the surface is anodized, strong and durable. This extension is designed to convert an electric drill to a grinding wheel. The extension is about 87 x 10 x 8mm / 3.43 x 0.39 x 0.31 inches. Only a small extension, the electric drill can create a new grinding wheel that is cost-saving. Great workmanship, strict quality control and quality assurance, high safety, can be used with peace of mind. Specification: Material: High Speed SteelSize: About 87 x 10 x 8mm/3.43 x 0.39 x 0.31 inchPackage Included: 1x Electric Drill Conversion Sanding Wheel AccessoriesNote: 1. Please allow 1-3cm errors due to manual measurement, please make sure you do not mind before ordering. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.