4 sizes of ultra-fine gear reversible box end in 1 wrench, making this the most versatile wrench you own. 120-tooth ultra-fine reversible ratcheting gears with just 3 degrees of swing arc let you work effortlessly even in tight spots. Change gear directions with a simple thumb switch. 6-point WaveDrive Pro box end gives you a sure grip and satisfying turns on both unrounded and rounded bolts. WaveDrive Pro also prevents damaging and rounding of bolts. 0-degree offset provides maximum clearance. Strong and durable Chrome Vanadium steel construction and finished with our MaxChrome plating for enhanced durability and corrosion resistance. Set of four (4) 4-in-1 wrenches with 16 sizes in metric and SAE: 8, 10, 12, 13, 14, 15, 17, 19 mm, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 in. The Capri Tools 4-in-1 120-Tooth Double Box End Reversible Ratcheting Wrench features 4 sizes in 1 wrench, giving it unparalleled versatility. It uses 120-tooth ultra-fine reversible ratcheting gears with just 3 degrees of swing arc, letting you work effortlessly even in tight spots. Change gear directions with a simple thumb switch.