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Large markings for quick socket identification Includes 72 tooth ratchets in 3 drive sizes for increased access and minimal arc swing Chrome finish for corrosion resistance 6 point sockets for increased torque with fastener Durable blow molded case allows for easy tool storage › See more product details; Product description The 189pc 3 drive mechanics tool set comes equipped with 72-tooth ratchets, a broad assortment of drive tools, and a rugged blow mold case. This case is constructed with metal hinges for separate sets, and the dimensions are specifically designed to fit into CRAFTSMAN metal storage boxes for easy organization.; Product description The 189pc 3 drive mechanics tool set comes equipped with 72-tooth ratchets, a broad assortment of drive tools, and a rugged blow mold case. This case is constructed with metal hinges for separate sets, and the dimensions are specifically designed to fit into CRAFTSMAN metal storage boxes for easy organization.; The 189pc 3 drive mechanics tool set comes equipped with 72-tooth ratchets, a broad assortment of drive tools, and a rugged blow mold case. This case is constructed with metal hinges for separate sets, and the dimensions are specifically designed to fit into CRAFTSMAN metal storage boxes for easy organization.