The Bosch 2607017473 1/4in Shank Mixed Router Bit Set 15pc is a comprehensive set of router bits and spares, including many commonly used router bits as well as a hex key and three ball bearings. It's the ideal bit set for carpenters, jointers, and other woodworkers, with each bit in the set featuring a carbide cutting edge, which delivers a long and reliable cutting life. These bits can rout a wide range of profiles across a variety of materials due to the diversity of cutting geometries. These bits are best used in hard wood, soft wood, and wood composites. Stored in a robust storage case with transparent cover, this set can be easily transported to wherever they're needed. The shank has a diameter of 1/4in, making them compatible with most 1/4in handheld .