This is not your run of the mill adjustable wrench. The Mach Series Adjustable Ratcheting Wrench is built for speed and strength. Combine the quick slide adjustment and the ratcheting feature of the wrench which will allow for 5X's faster use. Use for SPEED with the quick slide adjustment. Forged design adds STRENGTH and also exceeds ASME requirements. Craftsman unlimited warranty ensures durability and the ultimate in quality.