Dremel accessory (562) spiral cutting bit is designed for 'free' cutting in ceramic wall tiles and mosaics Best for use on wall tiles and can also be used on metal pipes, ceramic, brick Working length up to: 30 mm, Cutting diameter: 3.2 mm Recommend to use with the Dremel Multipurpose Cutting Attachment (566) to help maintain depth during the cutting and drilling Fits with all Dremel Multi-/Rotary tools or other 3,2mm shank size multi- / rotary tools, Weight: 0.02425084882 pounds, Manufacturer: Dremel