VALVE SEAT TOOL KIT HIGH CARBON STEEL CUTTER. VINTAGE BLOCK HEADS HQ. Milling in the following sizes. At 45 DEGREE + 90 DEGREE. 2-1/8 – 45 DEG. 2 – 45 DEG. 1-7/8 – 45 DEG. 1-3/4 – 45 DEG. 1-5/8 – 45 DEG. 1-9/16 – 45 DEG. 1-1/2 – 45 DEG. 1-7/16 – 45 DEG. 1-3/8 – 45 DEG. 1-5/16 – 45 DEG. 1-1/4 – 45 DEG. 1-3/16 – 45 DEG. 1-1/8 – 45 DEG. At 30 DEGREE + 60 DEGREE. 1-7/8 – 30 DEG. 1-3/4 – 30 DEG. 2 – 30 DEG. 2-1/8 – 30 DEG. SEAT BORE CUTTERS 70 DEG. 2 – 70 DEG. 1-3/4 – 70 DEG. 1-1/2 – 70 DEG. 1-1/4 – 70 DEG. 8 stem guide in the following sizes. 5/16″, 3/8″, 11/32″, 7/16″. 7MM, 8.5MM, 9MM, 10MM. Not suitable for Modern / Hardened valve seats. NOW IN VINTAGE STYLE METAL CASE. Track Page Views With.