Sleeves chrome vanadium, chrome, blade tool steel, gray, for Internal serration screws (XZN). Particularly long version .zB for cylinder head bolts to VW Polo, Scirocco, Derby, Passat, Golf and Audi 80, 100, FORD OHC engines and OPEL, MERCEDES BENZ from Bj. 8/78, 116, 117.
Size: M12 Length: 140.0 mm diam .: 23.0 mm