For pricechoose optionsSelect Option 13 Piece 0.0015-0.200in 26 Piece 0.0015-0.025in Quantity Add to Basket Used to adjust tappets, spark plugs, distributor points, checking bearing clearances and gear play, fitting pistons, rings and pins and gauging narrow slots. Leaves are tempered steel, easily removed and replaced. Locking device on all sets.