An Orbital Sander is is a power tool used to smooth surfaces by abrasion with sandpaper. Orbital sanders have a means to attach the sandpaper and an electric motor to move it rapidly, contained within a housing with allows it to be hand-held and maneuvered across surfaces or edges to be sanded. In the SOA, we have three types of Orbital Sanders. One type uses round sanding discs that have a perforated “Velcro”, or “Hook and Loop” attachment method. Another uses round, adhesive-backed sanding discs, and the third type has a square, rather than round base, which uses ¼ pieces of standard sandpaper sheets. This third type is called a ¼ sheet sander, and will be described later in this document.
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