The MAC Tools PDG100K Pencil Die Grinder Set is a high-quality tool designed for precision grinding tasks. Featuring a comfortable pencil grip for ease of use, this set includes a die grinder with a 1/8 inch collet size and a 1/4 inch air inlet size. With a variable speed trigger and made in the United States by Mac Tools, this set is perfect for automotive and industrial applications. At a cost of $249.99 when new, this set offers great value for professionals and enthusiasts alike.