The BaByliss PRO FX601R is a high carbon steel replacement blade for the FX690, FX687, FX667, Oster, Andis, Wahl, and Laube.
To remove the blade, first turn the clipper to the OFF position. If the blade lock is engaged, please release first. Hold the clipper with the cutter facing you and push the upper part of the blade away from you. The blade will snap away from the housing. Simply remove the blade from the tongue.
To replace the existing blade, turn the motor on and slide the new blade onto the tongue. Then snap the blade back into the housing.