VALVE SEAT CUTTER KIT. 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.