This Craftsman Metric Nut Driver Set includes 7 pieces with sizes ranging from 5mm to 11mm. The set features a 6 point drive type and a hollow shaft design made of durable steel material. The ergonomic grip and handle provide comfort and ease of use, while the heavy-duty construction ensures long-lasting performance. The set comes with a convenient case for easy storage and transportation. Ideal for use in automotive and industrial applications, this high-quality nut driver set is made in the United States and is a must-have for any toolbox.