• This popular solid steel spark plug gauge is designed with a tapered edge for gauging spark plugs and with a flanged hole to adjust the side wire of plugs without pressuring centre electrode. • Ramp style with gap opener. • Zinc alloy steel. • Marked in metric & imperial sizes. • Size range: 0.5mm to 2.53mm (0.020″ (Inch) to 0.100″ (Inch))
