TOOGOO Air Operated Valve Lapper Automotive Engine Valve Repair Tool Pneumatic Valve Grinding Machine Valve Seat Lapping Kit Car Grind. 2.4 out of 5 stars 3. NEW VALVE SEAT CUTTER 5 CUTTER SET CARBON STEEL SET FOR VINTAGE CAR & BIKES. 3.1 out of 5 stars 7. $18.99 $ 18. 99. Get it as soon as Mon, May 4.