Spark Plug Taps (Piloted Reamer Taps),also known as pilot nose taps.

Spark plug taps.

Also known as Piloted Reamer Taps,pilot nose taps, for use in spark plug applications.

Spark Plug Taps have a pilot thread at the front, to pull the tap into the hole, followed by the reamer section which removes the damaged threads and then by a larger tap section

which cuts the proper threads for the HeliCoil spark plug insert to be installed.

No prior drilling of worn out threads is needed with HeliCoil spark plug taps.

Material: carbon steel,alloy steel,high speed steel.