FeaturesCuts stainless steel quickly and easilyQuick-ChangeĀ® arbor allows you to change cutter heads with a simple push and a turnUse the same arbor for different size cutting headsFlange stop prevents over drilling for safetyEjector spring on all sizes above 3/4 in makes removal of slug easierReplaceable cobalt steel pilot drill with split point tip to prevent walkingPrecision carbide teeth for optimum performance and durability645-011 arbor645-001 replacement pilot drill