This tool cleans spark plugs with abrasive or air cleaning with the simple flip of a switch! The included abrasive material removes carbon build-up on spark plugs to return plugs into a like-new condition. Features include a flange on either side to easily fasten the spark plug cleaner to your workbench. Clean spark plugs and save at your home garage or auto work shop with this spark plug cleaner! Abrasive blasting removes carbon build-up on spark plugs Abrasive material is supplied Flange on each side lets you fasten the cleaner to your workbench Average air consumption7.7 CFM Maximum pressure (PSI)90 PSI Working pressure (psi)90 PSI Air inlet size1/4 in. Recommended hose size (in.)3/8 in.