CARBIDE TIPPED VALVE SEAT CUTTER HEADS. BIG & SMALL BLOCK V6, V8 DIESEL & PETROL ENGINES HEADS. VINTAGE & MODERN PERFORMANCE HEADS. TO CUT HARD SEATS EASILY. MILLS IN THE FOLLOWING SIZES. 1.1/4 30 + 45 DEGREE. 1.3/8 30 + 45 DEGREE. 1.1/2 30 + 45 DEGREE. 1.5/8 30 + 45 DEGREE. 1.3/4 30 + 45 DEGREE. 1.7/8 30 + 45 DEGREE. 2 30 + 45 DEGREE. 2.1/4 30 + 45 DEGREE. 1.3/8 70 DEGREE. 1.1/2 70 DEGREE. 1.5/8 70 DEGREE. 1.3/4 70 DEGREE. 2.1/8 70 DEGREE. 9 x Stems metric size 5 mm, 5.5 mm, 6 mm, 6.5 mm. 7 mm, 8 mm, 8.5 mm, 9 mm, 10 mm. 4 x Stems inch size 11/32″, 3/8″, 5/16″, 7/16″. 2 x T – HANDLES. 2 x DRIVE BARS. 1 x TAP 1/2 X 20 TPI. We can also produce CUTTERS as per costumer requirement. PLEASE READ THE DESCRIPTION CAREFULLY BEFORE ORDER.