This professional ICON® Modular General Service Socket Set is ideal for the garage or jobsite. The ratchet has a 90-tooth gear mechanism for a tight 4° arc swing, ideal for work in confined spaces. The low-profile ratchet head makes it easier to work in tight, cramped engine bays. Each extension has a small diameter shank with knurling for a secure grip. The precision-machined gears deliver smooth ratcheting action and stand up to heavy torque. Like all ICON® hand tools, this set is backed by a hassle-free, manufacturer’s lifetime warranty.