Ceramic Stone 1 x 6 x 100mm x 800G Blue NSB106 85077 Use a Spark Plug Wrench

Use a Spark Plug Wrench or correct spark plug socket to then tighten a further half to two-thirds of a turn to fully seat your NGK spark plug (Conical seat plugs require a further 1/16th turn)

2x – 6” 18TPI Metal Blades

Off-corner loading design on box end provides better grip and reduces fastener rounding Pass-Thru® technology works down any Length of threaded rod and long bolts

100mm centre to centre

Ceramic Stone 1 x 6 x 100mm x 800G Blue NSB106 85077 Use a Spark Plug WrenchMade of a new composite material of ceramic fibres and thermosetting resin. Excellent for grinding and polishing of alloyed and non alloyed tool steels, cast iron, various alloy metals, copper, aluminium, silicon, stones, plastics etc. Extremely long life practically non clogging and almost unbreakable allows these stones to be manufactured in very thin cross sections. Suitable for hand, mechanical and ultrasonic machines. Type: Flat Size: 1 x 6 x