VALVE SEAT CUTTER KIT. Must For vintage classic and modern cars. Trucks, big block diesel and petrol engines. VALVE SEAT CUTTERS CAN BE USE. FROM BOTH SIDES FACE AND DEGREE. Contents :- (29 pcs cutters). 1 3/16″, 1 1/4″, 1 5/16″, 1 3/8″, 1 7/16″, 1 1/2″, 1 9/16″, 1 5/8″. 1 11/16″, 1 3/4″, 1 13/16″, 1 7/8″, 2″, 2 1/8″. 1 5/16″, 1 7/16″, 1 3/4″, 1 7/8″, 2″, 21/8/”. 1.1/4″, 13/8″, 1.1/2″, 1.5/8″, 1.3/4. 1 1/2″ – 1 3/4″ – 2 – 2 1/8. (4pcs) Stems metric size. 7 mm, 8 mm, 8.5 mm, 9 mm, 10 mm. (4pcs)Stems inch size. 11/32″, 3/8″, 5/16″, 11/16″.