Time-Sert 44195 M14 x 1.25mm Seat Cutter Guide. Time Sert seat cutter kits made in United States. Time Sert 44195 seat cutter repair kit.   SEAT CUTTER GUIDE M14x1.25 SPARK PLUG For use when the step tap cannot be threaded deep enough through the spark plug hole to allow use of the seat cutter. Used in small head repair. (e.g Lawn mower heads)