[Practical and Valuable Set] The angle grinder attachments kit includes 8PCS useful tools. All accessories are compatible with standard American angle grinders with 5/8inch-11 threads. (NOT FIT FOR 4-1/2inch) [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 time and frustration. Great to use with cup brush, wire wheel, polishing disc, flap wheel, ball gouge, etc. [Adjustable Grinder Spanner Wrench]The lock-nut grinder wrench is made of carbon steel and features a 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. [Standard Grinder Flange Nuts]Solid and flange nuts with 5/8-11 Inch threads are manufactured to high-quality standards. Diameter 1.65 inch. It can be compatible