Valve Spring Seat Cutter, 1.690 in OD / 0.570 in ID, 11/32 in Pilot, Steel / Carbide, Each. Manley specializes in engine performance for everything from street to track to drag strip. Their product line-up includes valve train components, pistons, rings, connecting rods, and crank shafts for everything from late model V8? S to sport compacts. SPRING SEAT CUTTER TOOL 1.690IN. 0.43 lbs 0.20 kg. 3.2 in 8.13 cm. 2.7 in 6.86 cm. 1.7 in 4.32 cm.