The CRAFTSMAN TOOLS 44535 6mm. Open-End x 7mm. Box Combo Wrench is a high-quality hand tool designed for automotive use. With a 12-point design and a length of 3.25″ / 8.1cm. this wrench is perfect for tight spaces and applying the proper amount of force. The combination of 6mm. and 7mm. sizes make it versatile for a variety of applications and the CRAFTSMAN brand ensures durability and reliability.