Crevice Tool is used for cleaning narrow, difficult to reach areas in commercial and industrial vacuuming applications.This product is specially designed to efficiently clean dificult crevices in the application with with Nikro 1 1/2'' Vacuum Hose port. NIKRO- A true innovator in H.E.P.A. filtration offers a complete line of critical filtered vacuums for use in removing asbestos, lead, toxic, and nuisance dusts or other applications were H.E.P.A. filtration is a must. Efficient, economical, and versatile, NIKRO H.E.P.A. filtered vacuums come in a variety of sizes, styles and configurations to better suit your cleaning needs.