Removing the handle from this type of faucet/tap
Check to see if there is a nut just below the handle which the stem comes out of. If this is a laundry faucet or the type that projects from a wall there may be a connecting nut that allows the faucet to swivel into alignment with the supply pipe. Either way use a crescent (adjustable jaw) wrench or as @bib mentioned tape or a rag to protect the faucet from being marred.