A pushbutton plier device and a method for converting a plier tool is provided. The pushbutton plier device includes a locking assembly. The locking assembly has a pushbutton and a housing. The pushbutton has a pushbutton body. The pushbutton body has at least one blocking member recess. The housing has a housing body. The housing body is configured to selectively contain a blocking member. The pushbutton plier device has a first plier handle and a second plier handle. The first plier handle has at least one first plier handle aperture. The second plier handle has at least one second plier handle aperture. When the first plier handle, the second plier handle, and the locking assembly are selectively joined together in a predetermined position, the locking assembly, located within the first plier handle aperture and the second plier aperture, secures the first plier handle to the second plier handle.