This 10-piece set of diamond coated polishing grinding heads feature a 2.35mm shank size, making them compatible with most rotary tools. They are designed for aggressive and fast grinding, resulting in higher productivity, and are extremely durable, long lasting, and economical. The diamond coating ensures efficient grinding and a smooth finish on a variety of materials. Perfect for DIY enthusiasts and professionals alike. Material: Metal. Head Coating: Diamond Coating.Features:- Designed for aggressive and fast grinding.- Faster grinding time for higher productivity.- Extremely durable, long lasting and economical.Specifications:Material: MetalShank size: 2.35mmHead Coating: Diamond coatingPackage included:10 x Rotary BursNotes:1. Manual measuring, please allow 1 ~ 3mm error,thank you.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.