02871mm, Hex L key, 275 L x 113 W x 05 H, 332, Long Hex L key, long arm 338, short arm 066, used to drive internal hexagon socket allen head fasteners, tools are made with Eklind Alloy Steel that is heat treated, quenched and tempered for optimum strength, torque and ductility for safety and coated with a rust resistant finish