Sealey magnetic camber castor king pin gauge sealey ga450 robust magnetic gauge mounts onto hub or brake disc for quick and accurate measurement of camber castor angles and king pin inclination two large adjuster knobs one for conveniently zeroing bubble during angle measurement and one for adjusting king pin inclination camber gauge with fixed graduation from 5 to 5 adjustable castor gauge graduated from 11 to 3 king pin gauge graduated from 0 to 14 left to right supplied i