APPLICATION -- For most Honda TRX 250X, 300X, 300EX, 400X, 400EX, 450R, and 450EX. SET INCLUDES -- 1 x 45.5mm Wrench, 1 x 56mm Wrench. 1 x 45.5mm Wrench, 1 x 56mm Wrench. 1/2" DRIVE -- Includes a 1/2" square drive allowing for use with a torque wrench for proper axle torque.