The online power tool trade counter:
Die grinders are typically used when precision grinding work is required. 50mm max diameter wheel die grinders are useful for free hand shaping, sanding or grinding of materials such as metal and stone. Die grinders are also useful for polishing. One difference with a die grinder when compared to a straight grinder is that the die grinder typically has a higher RPM. Die grinders are commonly used by engineers, engine builders and engravers.