L key wrench is quenched and heat-treated s2 steel (58-60 HRC), high strength and hardness, rust-proof and wear-resistant. Chamfered hexagonal ends slide fasteners in easily, reducing wear on wrenches and fastener heads. The long/short arm design provides additional reach for deep work points on the long end and additional leverage for tightening fasteners on the other short end. L-handle hexagon wrench is widely used in removing and installing hexagon socket head screws in towel bars, door handles, assembled furniture, equipment, etc.