This is a praticle wrench to assemble the the angle grinder's disc.

This version of the model is modular, so it is suitable for almost all types of anglegrinders:

• nuts with 35mm hole circle diameter;
• nuts with 28mm hole circle diameter;
• nuts with 20mm hole circle diameter.

I designed it considering a 35 mm model so I made the holes for the screws and nuts of M6 dimension couse it fits perfeclty with the dimension of the machine's holes , honestly I don't know if that dimensions of the screws fits also with the 28 and 20 mm types, but anyway you can just put them smaller.