ICON S1SET-48 1/4 SAE & Metric Modular General Service Socket Set, 48Pc Item 70311. 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. Thin wall design fits even the most difficult fasteners. Chamfered openings for easy fastener and drive engagement. Shallow hex depth keeps fastener positioned near end of deep sockets. Precision square drive for maximum torque. Hardened chrome-moly steel for superior strength, torque, and tool life. High-polished chrome finish provides corrosion resistance and easy cleanup. Ergonomic grip design for reduced hand fatigue. Premium carrying case with modular EVA inserts for toolbox storage.