Features: 1.A Good Helper: Sphere Rotary Burr Can save you time and energy, allowing you to concentrate on the task at hand. 2.Teeth Surface: The teeth provide you with excellent wear life and have longer lasting burrs. 3.Easy to Use: Spherical Steel Rotary File, Comfortable and convenient operation allows you to removes various materials easily. 4.Function: A very rough coating can quickly removes the blank while maintaining a relatively smooth finish. 5.Note: Grinding head only, the grinder is not included, just for showing in the picture. Specifications: 1. Angle grinder ball head - interface 10mm (for angle grinder type 100), weight with packing approx. 457g. 2.Angle grinder spherical grinding head - interface 14mm (for 115 and 125 type angle grinder), with packing weight about 445g. Material: carbon steel Packing: blister packing (size about 185*104*45mm) includes: 1 x Grinding head