Neway 666 Valve Seat Cutter 2-1/4 (57.2mm) 15 x 60 deg. Valve Seat Cutting with Neway Valve seat reconditioning is simple, accurate, and clean with Neway’s carbide-bladed cutters. Neway’s user-friendly valve seat cutters allow you to precisely machine a multi-angle valve seat in a matter of minutes. Tungsten carbide leaves a perfectly flat, machined surface, ideal for optimal sealing efficiency and heat transfer. Cutter Body Diameter: 2-1/4″ Cutting Angle: 15° x 60° Carbide Blade Type: TC251 – 1/2″ Tungsten Carbide & TC254 – 3/4 Correction Cutter Number of Blades: 5 Per Side Pilot Type Required. 375″ Top Size – 140 or 150 Series Pilots Hex Drive Size: 1/2″ Hex Drive – Use with TW505 T-Handle or TWEZ Easy Turn Wrench Standard Series Neway Cutter Bodies are designed to work with Neway. 375 Top Size Valve Guide Pilots. These cutters are not compatible with the Small Series. 297 Top Size Valve Guide Pilots. Neway 666 Valve Seat Cutter 2-1/4 (57.2mm) 15 x 60 deg Valve seat reconditioning is simple, accurate, and clean with Neway’s carbide-bladed cutters. Carbide Blade Type: TC251 – 1/2″ Tungsten Carbide & TC254 – 3/4″ Correction Cutter Pilot Type Required.