Neway 122 Carbide Valve Seat Cutter 1.0 (25.4mm) 45 deg. This single sided cutter has three carbide blades and angle of 45 Deg. Please see cutting dimensions below. The centre hub is suitable for use with a Small series pilot 0.297 in diameter TOP. Please see our other Neway listing for suitable pilots. Neway Valve Seat Cutter – 1.00 – 45°. 25.4mm / 1.00. 297 Top Size – 100 or 120 Series Pilots. 29.0mm / 1.14. Untitled Document Neway 122 Carbide Valve Seat Cutter 1.0 (25.4mm) 45 deg. CU122 Neway Valve Seat Cutter – 1.00″ – 45° Part Number CU122 Name Neway Valve Seat Cutter – 1.00″ – 45° Diameter 25.4mm / 1.00″ Angle 45° Blade Count 3 Blade Type TC253 Pilot Type Required 297″ Top Size – 100 or 120 Series Pilots Operating Range Minimum 22.5mm /. 886″ Operating Range Maximum 29.0mm / 1.14″.