High-speed electric grinder, SHG-150D model, enables efficient grinding with a rotation speed of 2750/3300rpm. - Model Name: SHG-150D - Current: 1.3A - Rotation Speed: 2750/3300rpm - Power Consumption: 125W - Rating: 15 minutes - Year of Manufacture: 1989 - Voltage: 100V - Frequency: 50/60Hz Thank you for viewing. This item was used by my father. I don't know what it was used for, and I have no idea about its usage or how to use it. I was going to throw it away, but I tried turning it on and it worked, so I decided to list it in case someone would like to use this rusty item. Height: Approximately 18cm Width: Approximately 30cm Depth: Approximately 20cm Weight: Approximately 5.2 kg There are many rusty parts. It is an old item. Please purchase if you understand this.