Features 1、Made of premium steel, these durable flanges are great replacement for your angle grinder. 2、The surface of flanges is plated with chromium for better performance. 3、Each set of flanges has independent packing for convenient carrying and storing. 4、Two types of flanges include the threadless one and threaded one for rotating fixation. 5、There are three different models of flanges that you can choose for angle grinders of various brands. Specification Features: Made of premium steel, these durable flanges are great replacement for your angle grinder. The surface of flanges is plated with chromium for better performance. Each set of flanges has independent packing for convenient carrying and storing. Two types of flanges include the threadless one and threaded one for rotating fixation. There are three different models of flanges that you can choose for angle grinders of various brands. Specification: Model: F3 fit for Hitachi,6100 fit for Bosch, 9523(Optional) Material: Steel Diameter: 30mm / 1.2in Quantity: 2pcs Package list: 2 * Flanges Package List