GEARWRENCH 1/2" Drive 90-Tooth Dual Material Flex Head Teardrop Ratchet 17" 81370T RatchetGEARWRENCH 1 2" Drive 90 Tooth Dual Material Flex Head Teardrop Ratchet 17" 81370T The GEARWRENCH 90 tooth ratchets have a 4 degree swing arc and 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. GEARWRENCH ratchets help you GET IT DONE. 90 tooth gear delivers a 4 degree swing arc to turn a fastener in tight confines