31 PCS VALVE SEAT CUTTER SET HIGH CARBON STEEL 1.3/16 TO 2.1/8 45 DEG. Note:WOODEN BOX IS NOT INCLUDED. Manufactured from quality carbon steel. For all Vintage Cars, Jeeps, Tractors, Trucks and Motorcycles and Jeep, Vintage Morris, Mini, Mercedes, Perkins P-6, Leyland. VALVE SEAT TOOL KIT. VINTAGE BLOCK HEADS HQ. Milling in the following sizes. At 45 DEGREE + 90 DEGREE. At 30 DEGREE + 60 DEGREE. SEAT BORE CUTTERS 20°. 8 stem guide in the following sizes. 5/16″, 8″, 11/32″, 7/16″. 7MM, 8.5MM, 9MM, 10MM. 1 PC T – HANDEL/ARBOR. Not suitable for Modern / Hardened valve seats.