The 3/8 Drive Master Impact Set has a total of 78-pieces. The set includes the 3/8 in. Drive SAE/MM Impact Set (44-Piece), the SAE and Metric 3/8 in. Drive Thin Wall Deep Impact Socket Sets (20-Pieces total), and the SAE and Metric 3/8 in. Drive Pinless Universal Impact Socket Sets (14-Pieces total). The 3/8 in. Drive SAE/MM Impact Set is Husky's most complete selection of 3/8 in. drive Impact Sockets in 1-set, all conveniently stored in single, easy to transport case. The 6-point style of socket helps to reduce the chance of rounding fasteners under high-torque applications and features chamfered lead-ins for quick and easy placement onto fasteners. The industrial grade black oxide finish provides added durability and prevents corrosion. The Husky 3/8 in. drive Thin Wall Impact socket sets feature a 6-point design. These sockets are up to 2-times stronger than standard chrome sockets and 20% slimmer than impact sockets. This socket set can be used with a standard ratchet or with your cordless impact tools, removing the need for 2 sets of sockets. The new Husky pinless impact sockets feature 360° rotation providing a greater range of motion. The socket wall dimensions are optimized to provide strength while retaining access to hard to reach fasteners. Sizes are hard stamped on socket wall for easy identification.