The gearwrench 90-tooth ratchets have a 4 swing arc and a low-profile head for easier access to hard-to-turn fasteners. The 90-tooth design exceeds asme torque performance requirements, delivering one of the strongest ratchets on the market. These gearwrench ratchets help you get it done. features: 90-tooth gear delivers a 4 swing arc to turn a fastener in tight confines precision engineered high strength pawl for increased durability long 6-4/5″ full polish chrome handle for increased access highly visible on/off markings on the head teardrop, low-profile head and flush-mounted on/off switch allow better access in tight spaces enclosed head design for extreme resistance to dirt infiltration bright, full polish chrome finish easily wipes clean and resists corrosion meets or exceeds asme specifications