1、HIGHER EFFICIENCY: A very rough coating can quickly remove the work blank as well as maintaining a relatively smooth finish. 2、CHROME VANADIUM ALLOY STEEL: Having been through quenching and polishing treatment, this file has excellent durability. 3、INCISIVE EDGE: The cutting edge has undergone fine polishing treatment, it's also arranged neatly to cut wood more smoothly. 4、WIDE APPLICATION: This spherical drill bot can be flexibly applied to polishing, grinding, engraving and so on, very practical. 5、EASY INSTALLATION: Compact in size and light in weight, it's very convenient to install the grinding head to the angle grinder. Item Type: Ball File Material: Chrome Vanadium Alloy Steel Purpose: Spherical Rotating File Scope of Application: Wood Grinding Colour: Black Applicable Angle Grinder Model: Approx. 10mm / 0.4in (100 type angle grinder), 14mm / 0.6in (115, 125 type angle grinder). 1 x Ball File Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. YJL official store