Our air tools,like your car,are precision manufactured,therefore they require oil to lubricate and cool then.They should be supplied with a filtered air supply from which the inevitable condensed water has been removed.This will ensure long and trouble free operation. Air drill with 13mm keyless chuck a powerful drill for light and heavy duty work in the automotive workshop.Ideal for valve guide reaming and carbon removal.Equipped with adjustable side handle and jacobs keyless chuck.