2 x valve guide shank for valve seat cutters with carbide tip, 5 and 6 mm. 2xValve Guide Stem FOR VALVE SEAT CUTTERS CARBIDE TIP 5.50mm 6.0mm HARDENED BLACK & DECKER, KWIKWAY, NEWWAY PILOTS ALSO AVAILABLE IN OUR E BAY STORE We also manufacture pilots to specifications and for seat cutters from Serdi, Vannorman, Rotler and Winona made of solid carbide. BULK REQUEST CONTACT US! Feel free to ask any questions THANKS FOR WATCHING!.