The RotoZip RZ-GRK Grout Removal Attachment Kit enables you to use your RotoZip Spiral Saw to remove grout in corners and grout lines 1/16-inch or wider without damaging the surrounding tiles. The steel guide pins and removeable base of the RZ-GRK Grout Removal Attachment allow the user to center the grout removal bit protecting the tile and enabling the RotoZip to remove grout up to a 1/2-inch deep. Features: Removable base is ideal for corner grout and grout lines 1/16-inch or wider Can be used on wall floor and corner grout Steel guide pins allow you to center bit and protect tile allowing you to remove grout up to a 1/2-inch deep Offers a quick connection with an industrial design that optimizes the line of sight Its angled position of bit is designed for optimal performance The RZ-GRK includes a 3/16-inch grout bit and a 1/4-inch collet The Grout Removal attachment also works with all RZ model Spiral Saws Length 2.5-inchWeight .44 pounds Fits models-RZ1 RZ5 RZ10 RZ20 RZ25 RZ18V Revolution Rebel Pro Series Classic/SCS01 SCS02 RTM01 Solaris