This is a pair of high quality Iron Inner Flanges and Outer Lock Nuts, integral casting, CNC machining from standard parts. Changed Angle Grinding Assist from 100mm to 125mm. Both 20mm and 22mm bore grinding wheels can be installed. Features: Compact size, lightweight and portable, easy to carry and money-saving stow. Adopts iron material, integrated forming, CNC machining of standard parts. With high hardness and high toughness after heat treatment, wear-resistant and can provide long service life. It is used for 100mm angle grinder Rotor used. Angle grinder modified from 100mm to 125mm 20mm and 22mm bore abrasives can be installed. Features: Name: Angle Grinder Attachment Material: Iron Item Size: 40 * 40mm / 1.57 * 1.57in Packing Size: 150 * 100 * 50mm / 5.91 * 3.94 * 1.97 Inch Packing Weight: 98g / 3.47oz < br/> Packing List: 1 * Inner Flange