Carbide Mounted Large Valve Seat Cutters Set 30 45 70 (20 Degree) Set of 12 Large Carbide Mounted Valve Seat Cutters 30 45 70 (20 Degree) USA Product Specifications: 12 Large Carbide Mounted Valve Seat Cutters: -70°: 1 1/4", 1 13-16", 1 3/8", 30°: 1 3/4", 45°: 1 1/4", 1 3/16", 1 5/8", 1 7/16", 1/8", 1/4". (8pcs) Valve Guide Rod: Measures 7mm, 8mm, 8.5mm, 9mm, 10mm, 7/16", 11/32", 5/16" (1pc) Handle (2pcs) Rod Cut Out Rigid SEATS Carbide Tip Valve Seat Milling Machine Set 23x.