1. Practical and Valuable Set The angle grinder attachments kit includes 8PCS useful tools: 1 pc of extension shaft, 1 pc of adjustable grinder wrench, and 6 pcs (3 sets) of grinder flange nut. All accessories are compatible with standard American angle grinders with 5/8”-11 threads. 2. Great Extension Rod For Hard To Reach Places The 3-inch extension shaft helps grind narrow and tight positions and angles that are inaccessible to angle grinders. It allows an angle grinder to reach beyond guard and save you time and frustration. Great to use with cup brush, wire wheel, polishing disc, flap wheel, ball gouge, etc. 3. Adjustable Grinder Spanner WrenchThe lock-nut grinder wrench is made of carbon steel and features a durable plastic coating handle and heat-treated pins, offering long-lasting reliability & strong grip. It’s a convenient tool to adjust the opening range from 0.5 to 1.25 inches. Ergonomic and easy to use. 4. Standard Grinder Flange NutsSolid and durable flange nuts with 5/8-11 Inch threads are manufactured to high-quality standards. Diameter 1.65 inch. It can be compatible with the vast majority of wood carving disks and grinding wheels. No more worrying about installing the sanding disc incorrectly on the Angle grinder.