Sealey-Spark-Plug-Thread-Chaser-12mm-Sealey-VS724-p-Suitable-for-cleaning-corrosion-&-carbon-build-up-from-spark-plug-threads-Also-possible-to-restore-minor-cross-threading-damage-Designed-for-deep-seated-plugs-where-a-slim-profile-drive-is-necessary-to-fit-down-into-the-head-Features-shank-above-threads-for-recessed-threads-p-div-table-tr-td-Model-No-td-td-VS724-td-tr-tr-td-Maximum-Drive-Diameter-td-td-18mm-td-tr-tr-td-Nett-Weight-td-td-0-01 Kg-td-tr-tr-td-S