VALVE SEAT CUTTER KIT. Predator Valve Seat Cutter kit Racing Kart Clone ATV Cycle Valve Jobs. CUTTER SIZES AS UNDER. 45 DEGREE ANGLE CUTTERS. 32 MM, 30 MM, 29 MM, 28 MM, 27 MM, 26 MM. 25 MM, 24 MM, 23 MM, 22 MM, 21 MM 70 DEGREE ANGLE CUTTERS – 28 MM, 25 MM, 23 MM. VALVE GUIDE HONE REAMER HSS. 4.5 MM, 5 MM, 5.5 MM GUIDE STEMS. 4.5 MM, 5 MM, 5.5 MM ARBORS + DRIVE RODS. FEEL FREE TO ASK ANY QUESTION.