Index tool allows for specifying the location of the ground electrode for maximum flame front generation
Soft copper spark plug washers are used in conjunction with the indexer to align ground electrode as well as adjust plug-to-piston clearance (washers sold separately; 30-pack)
Gold anodized billet aluminum with knurled edges for hand-held use - can also be vise-mounted
Designed for 14mm spark plugs
Made in the USA
