Crescent's 25-piece 3/8 in. drive 12-point standard SAE-Metric Mechanics Tool Set is the perfect addition to every mechanic's toolbox. This set of premium tools is made of chrome vanadium steel alloy that's been specially formulated and heat-treated for superior strength and resistance to abrasion and corrosion. With 72 teeth, you can take on the toughest jobs with confidence. Get the job done quickly and easily with Crescent.