Description Time-Sert 44196E M14 x 1.25mm Extended Seat Cutter. Time Sert Seat Cutters Made in USA. Time Sert 44196E Seat Cutter SPECIAL SEAT CUTTERS EXTENDED For use on some taper seat spark plug repairs that have very limited access to the spark plug hole. Cutter diameter .650 inches This tool only creates the inner countersink.